Ghost

Ghost (pronounced gohst)

(1) The soul of a dead person, a disembodied spirit imagined, usually as a vague, shadowy or evanescent form, as wandering among or haunting living persons.

(2) A mere shadow or semblance; a trace; a remote possibility; a faint trace or possibility of something.

(3) A spiritual being; the principle of life; soul; spirit (sometimes initial capital letter).

(4) A secondary image, especially one appearing on a television screen as a white shadow, caused by poor or double reception or by a defect in the receiver (also called ghosting).

(5) In photography, a faint secondary or out-of-focus image in a photographic print or negative resulting from reflections within the camera lens (also called ghost image).

(6) In optics, a series of false spectral lines produced by a diffraction grating with unevenly spaced lines.

(7) In metalworking, a streak appearing on a freshly machined piece of steel containing impurities.

(8) In pathology, a red blood cell having no hemoglobin.

(9) In tax-avoidance and other frauds, a fictitious employee, business etc, fabricated especially for the purpose of manipulating funds.

(10) In literature (especially quasi-literature), as ghost-write, to write a book, speech etc for another without attribution (distinct from the trade of the acknowledged ghostwriter).

(11) In engraving, to lighten the background of a photograph before engraving.

(12) In informal use (often associated with social media), suddenly to end all contact with a person without explanation, especially a romantic relationship; abruptly to leave a social event or gathering without saying goodbye.

(13) In digital technology, to remove comments, threads, or other digital content from a website or online forum without informing the poster, keeping them hidden from the public but still visible to the poster.

(14) In bibliography, as ghost edition, an entry recorded in a bibliography of which no actual proof exists.

Pre 900: From the Middle English gost, gast & goost (breath; good or bad spirit, angel, demon; person, man, human being", in Biblical use "soul, spirit, life”), from the Old English gāst (breath, soul, spirit, ghost, being), related to the Old High German gaist & geist (spirit) and the Sanskrit hēda (fury, anger).  The Proto-West Germanic gaist was derived from the Proto-Germanic gaistaz (ghost, spirit, (source also of the Old Saxon gest, the Old Frisian jest, the Middle Dutch gheest, the Dutch geest & the German Geist (spirit, ghost))), from the primitive Indo-European ǵhéysd-os, from ǵhéysd- (anger, agitation) and was cognate with the Scots ghaist (ghost), the Saterland Frisian Gäist (spirit), the West Frisian geast (spirit), the Dutch geest (spirit, mind, ghost), the German Geist (spirit, mind, intellect), the Swedish gast (ghost), the Sanskrit हेड (héḍa), (anger, hatred) and the Persian زشت‎ (zešt) (ugly, hateful, disgusting).  There’s no documentary evidence but the ultimate root is conjectured to be the primitive Indo-European gheis-, used in forming words involving the notions of excitement, amazement, or fear (source also of Sanskrit hedah (wrath), the Avestan zaesha- (horrible, frightful), the Gothic usgaisjan and the Old English gæstan (to frighten).  Ghost is a noun & verb (and used imaginatively as an adjective), ghoster is a noun, ghostly & ghosty are adjectives, ghosting is a noun & verb and ghosted is a verb & adjective; the noun plural is ghosts.

Ghost is the English representative of West Germanic words for "supernatural being" and in Christian writings in Old English it was used to render the Latin spiritus, a sense preserved by the early translators of the Bible in “Holy Ghost”.  The sense of a "disembodied spirit of a dead person", especially imagined as wandering among the living or haunting them, is attested from the late fourteenth century, a meaning-shift which returned the word to what was its probable prehistoric sense.  Most Indo-European words for "soul or spirit" also double with reference to supernatural spirits.  Many have also a base sense of "appearance" (the Greek phantasma; the French spectre; the Polish widmo, from Old Church Slavonic videti (to see), the Old English scin, the Old High German giskin (originally "appearance, apparition”), related to the Old English scinan & the Old High German skinan (to shine)).  Other concepts exist, including the French revenant (literally "returning" (from the other world)), the Old Norse aptr-ganga, (literally "back-comer") & the Breton bugelnoz (literally "night-child”).  The Latin manes (spirits of the dead) was probably a euphemism.

The gh- spelling appeared early in the fifteenth century in Caxton, influenced by Flemish and Middle Dutch gheest, but was rare in English before mid-1500s.  The sense of a "slight suggestion, mere shadow or semblance" (as in ghost image, ghost of a chance etc) is noted from the 1610s; the sense of "one who secretly does work for another" is from 1884 and ghost-write was a 1922 back-formation from the earlier (1919) ghost-writing.  The American Indian ghost dance was first noted in 1890, ghost town is from 1908, ghost story dates from 1811, the now less common ghost-word (apparent word or false form in a manuscript due to a blunder) is from 1886.  The “ghost in the machine” was English philosopher Gilbert Ryle's (1900-1976) 1949 description of René Descartes's (1596-1650) mind-body dualism and the phrase "to give up the ghost" (to die or prepare to die) was well-known in the Old English version; one of the many way folk avoid words like "death" or "die".  Synonyms include phantom, devil, demon, soul, shadow, spectre, vision, vampire, apparition, revenant, appearance, haunt, visitor, shade, spook, poltergeist, phantasm, wraith, daemon & manes.  There are a surprising number of uses of ghost, ghosted, ghosting etc said to be associated modern or internet slang covering fields as diverse as linguistic techniques and the art & science of smoking weed, the latter a rich vein of coinings.  However, the most commonly used describes someone with whom one has been in contact suddenly stops responding, disappearing, as it were, like a ghost.  This can happen in conjunction with unfriending etc but can be an act in isolation.  After becoming one of a number of Australian prime ministers (figuratively) defenestrated by their party before the voters got their chance, Malcolm Turnbull (b 1954; prime minister of Australia 2015-2018) left parliament and decried similarly deposed leaders who chose to stay as "miserable ghosts", a breed with a long tradition in many parliaments.   

Ghostwriters

Art of the Deal by Donald J Trump with Tony Schwartz (1987).  If the Nobel Committee can't bring themselves to confer on President Trump the Peace Prize, they could perhaps make him the Literature Laureate.  He would think that equally deserved.

Ghostwriters (also as ghost-writer) are professional writers hired to create content (books, columns, posts or any other (traditionally) text-focused item), the authorship of which ultimately will be credited to another although ghostwriters can be acknowledged as “co-authors” or (more commonly), receive credit in the form of having their name appear on the cover with a preceding “with”.  That latter approach of course implies some form of collaborative authorship and a famous example is Donald Trump’s (b 1946; POTUS 2017-2021 and since 2025) The Art of the Deal (1987), published as “by Donald J. Trump with Tony Schwartz” [b 1952].  The Art of the Deal is said to be competently written and for those in the business of the ruthless pursuit of deals it’s apparently an invaluable manual, Mr Trump in one interview saying perhaps the most important passages those advising (1) most deals don’t come off and (2) it’s better to walk away from what appears a bad deal than to close it in the hope it can be made to work.  Had than counsel been followed, there’d likely have been rather fewer corporate collapses than have been suffered since it was published; there’s good reasons why The Art of the Deal stayed at number 1 on The New York Times Best Seller list for three months and was a on the list for a year odd.

One day, there may be Lindsay Lohan: The autobiography.  Hopefully, there will be competing "authorized" and "unauthorized" editions.

So what does “By X with Y” usually imply?  The conventional view is it means “Y” is likely to have composed much of the text, based on interviews with “X”, their previous statements or other things they may have written.  It’s the most common approach in the biographies of sports stars that appear in the run-up to Christmas or father’s day; those books often sell well although whether they’re so often read is uncertain.  By contrast, “By X and Y” should mean true co-authorship (though not necessarily on the basis of 50-50 contribution) whereas “X by Y” should be a pure biography (although that can be “authorized” with the cooperation of “X” or “unauthorized” with even “X’s” active opposition to publication).  The “with” category obviously is the most ambiguous and thus often the most useful for a subject, allowing them to bask in the praise of a work well-received yet provide a layer of “plausible deniability” if needed.  Ghostwriters are used for a number of reasons including constraints of time, a lack of interest in the project (though not the profits) or, typically, a lack of the necessary skill with the written word.  Ghostwriting contracts can vary but the focus typically includes terms of payment, non-disclosure of involvement, the notional author’s exercise of veto over all or some of the content and the rights to the finished work.  Mr Trump certainly acknowledged using a ghostwriter, as did Paris Hilton (b 1981) who in her 2023 memoir thanked the ghostwriter who: “helped me find my voice”.

Monsieur Sarközy (left) and his third wife (Italian supermodel Carla Bruni, b 1967, right) arrive at La Santé Prison, November 2025.  Ghostwritten or not, it's unfair to "judge a book by its cover" but Monsieur Sarközy always looked guilty of something.  

One who never needed help to "find his voice" was Nicolas Sarközy (b 1955; President of France 2007-2012) who even found symbolic ways to express his inner torments.  When, in October 2025, entering La Santé Prison in Montparnasse to begin a five-year sentence imposed for “criminal association” related to campaign financing (it was a conspiracy charge), as well as comfortable shoes and some nice warm jumpers, the former Le Président took a novel and made sure the assembled press pack knew it was a copy of Le Comte de Monte-Cristo (The Count of Monte Cristo, 1844-1946) by Alexandre Dumas (1802-1870)), one of literature’s great “tales of revenge”.  He's since been released pending an appeal hearing so he's got some time to plot and scheme his vengeance and decide upon whom it will first be visited.

It’s the disclosure of using a ghostwriter that is critical, even if the exact details of relative contributions to the text remain murky.  The French novelist and dramatist Alexandre Dumas (1802-1870) is best-known for Les Trois Mousquetaires (The Three Musketeers, 1844) and Le Comte de Monte-Cristo but, by his own reckoning, he published some 1,200 volumes, hiring a veritable corps of ghostwriters so the production of “his” works could proceed on an assembly-line basis (many famous painters did much the same, creating by the twentieth century a significant (and lucrative) industry of those in the "authentication" business).  His illegitimate son (Alexandre Dumas fils (1824–1895 (fils being French for “son”)) was also an author of note (best remembered for The Lady of the Camellias (1848 and Camille in English-language versions), adapted by Giuseppe Verdi (1813–1901) for his opera  La traviata (The Fallen Woman, 1853)) and when one day father and son met for lunch, Dumas the elder asked: ‘‘Have you read my new novel yet?”.  “No,” replied the younger man, “Have you?”

JFK's Ghost, Kennedy, Sorensen and the Making of Profiles in Courage (2021) by David R.Stokes (b 1956 and a member of the Association of Ghostwriters).

One ghostwriter not (explicitly) acknowledged was Theodore Chaikin "Ted" Sorensen (1928–2010; US lawyer, author & presidential adviser), now widely believed to have written the great bulk (and possibly all) of Profiles in Courage (1956), credited to John Kennedy (JFK, 1917–1963; POTUS 1961-1963).  The slim volume displayed Sorensen’s fine touch with language but it was a slight work, a collection of eight, short biographical sketches describing acts of “bravery and integrity” by  DWM (dead white men who were now mostly forgotten US senators) and that it received the 1957 Pulitzer Prize for Biography was an indication more of the political sympathies of the selection committee than the work’s literary merit or historical significance.  Still, it was a minor contribution to history and Barack Obama (b 1961; POTUS 2009-2017) accepted the 2009 Nobel Peace Prize, awarded apparently to express the Norwegian Nobel Committee’s gratitude he wasn’t George W Bush (George XLIII, b 1946; POTUS 2001-2009).  Even at the time the authorship of Profiles in Courage was controversial with some journalists openly accusing the then Senator Kennedy (Democrat-Massachusetts 1953-1960) of having done little more than put his name on the cover and accept a Pulitzer.  A fortnight after the award was announced, stories began to appear in the press casting doubt on the authorship and, within days, a check (cheque) was drawn against a Kennedy family trust in favour of Ted Sorensen for US$100,000-odd, a extraordinary sum wholly disproportionate to either the fee even well-paid ghostwriters would expect or the profits realised by Profiles in Courage.  Shamelessly (a Kennedy family trait), whether as a senator or POTUS, JFK would autograph copies of “his” book and personally hand them as gifts to visiting dignitaries.

Politicians of course have speechwriters and their contributions are usually well-publicized, some of the more-skilful (or more publicity-conscious) becoming minor celebrities, a thing sometimes resented by those for whom they write although, as a general principle, politicians are well-advised if they leave speech-writing to the pros.  During the 1969 election campaign, when discussing speechmaking, bizarrely, the idiosyncratic Sir John Gorton (1911-2002; prime minister of Australia 1968-1971), despite having at his finger-tips the entire resources of the Commonwealth government, complained that the leader of the Opposition’s (Gough Whitlam (1916–2014; Prime Minister of Australia 1972-1975) “…large staff—which I haven’t got—helps him.  You see, I have never delivered a speech that I haven’t written myself. I doubt very much if Mr Whitlam has ever delivered a speech he wrote himself.  I need some research assistance, some background speech notes and this is what [Mr Whitlam’s staff are] doing and that is all [they are] doing.”  When asked his reaction to Mr Gorton’s claim he wrote all his speeches himself, Mr Whitlam (who had spent the campaign lampooning Gorton’s frequent lapses into near incoherency) quipped: “That is one of the few prime ministerial statements of this election that I find credible.”

An artist's ghostly take on an unforgiving woman: Portrait of Lady Violet Bonham Carter (circa 1917), oil on canvas by Sir William Orpen (1878–1931).

It’s not only speeches that are written for politicians to deliver, much of that to which their signatures are appended the work of others including most correspondence and some ghostwriters manage to hone their style to emulate the distinctiveness of those for whom they labor.  Although he once claimed “Oh, I have not read a great deal”, Winston Churchill’s (1875-1965; UK prime-minister 1940-1945 & 1951-1955) literary output was prodigious, including even one novel (that proved great fun for Freudians interested in mother-son relationships) and yielded the 1953 Nobel Prize in Literature.  His style came to be called “Churchillian” and is recognizable (indeed, even in the 1930s it was thought old-fashioned) but it could also be replicated and, years after his death, it became more widely known his teams of “research assistants” genuinely were responsible for many first drafts and even the authorship of what were at the time described in terms like “rolling Churchillian phrases” but in fairness, in that he was not unique and he did review every word prior to publication, editing and polishing as required.  Sometimes the criticism of such practices can go too far.  When Lord Beaverbrook (Maxwell Aitken, 1879-1964), died, Churchill’s private secretary drafted a short message of condolence to be published in the next edition of The Times: “I am deeply grieved at the loss of my oldest and closest friend who severed his country and his causes valiantly and was the most loyal and devoted of comrades.”  As a message from an old man with not long to live to the memory of his friend of almost 60 years, it seemed not objectionable but an objection came from Lady Violet Bonham Carter, (1887–1969, daughter of Henry Asquith (1852–1928; UK prime minister 1908-1916)) who called the message “clearly political” and thus breaking his silence on such matters, a silence tacitly for some time erected due to his decline.  The secretary smoothed things over with her but she returned to the theme after seeing two messages sent in Churchill's name in support of the Conservative Party on the eve of the 1964 general election.  These she branded “forgeries”.  To this accusation the secretary responded with rather more ferocity, telling her: “I really do not think you should have used the word ‘forgery’ to me.  Sir Winston has had things drafted for him for many years, even when he was prime minister.  If they represent his views, and he signs them, they are not ‘forgeries’.”

C'était ça ou mourir (2026) by Thélyson Orélien.  How the Prix Goncourt's committee rules on this work may prove influential in the future of publishing.

That represents the current view of what's "drafting" rather than "forging" although it may take some time before texts created by generative AI (artificial intelligence) are granted the same approbation, a ghostwriter’s hand still human and, at least for a while, that still matters as one French committee recently concluded, removing from consideration for the 2026 Prix Goncourt (The Goncourt Prize) the novel C'était ça ou mourir (It Was Either That or Die, 2026) by Haitian-born Canadian novelist Thélyson Orélien (b 1988), the concerns being “plagiarism” and “the use of generative AI.”  Although Le prix Goncourt carries a merely symbolic purse of €10, it’s vested with genuine prestige and is associated with a spike in sales so is worth winning.  Monsieur Orélien denies the accusations and the matter is attracting attention because it’s a sign of things to come, literary prize committees among the many institutions that will need to formulate protocols to determine where legitimate use of AI (research, grammar checks, formatting etc) ends and concepts like plagiarism, appropriation and “non-authorship” begins.  It was the English philosopher Gilbert Ryle (1900–1976) who, in The Concept of Mind (1949), when discussing the notion of dualism explored by the French philosopher René Descartes (1596–1650), introduced the phrase “ghost in the machine” and that was better to illustrate for modern readers his critique of the Cartesian position of the mind being distinct from the body with physical and mental activities occurring “simultaneously but separately”.  Mind-body dualism had a long run in Western philosophy and can again be re-considered because we’ve come a long way and with generative AI, the "ghostwriter is now the machine" and these agents clearly have “opinions” so not only are they writing, increasingly, they are “deciding” what to write.  The problems confronting such committees seem insoluble so the fudge may be the creation of new literary prizes for AI generated works and there’s no reason why the committees and juries shouldn’t at least in part be made up of AI agents.

Holy Ghost vs Holy Spirit in Biblical Translation

Pentecostés (Pentecost, circa 1545), oil on canvas by Tiziano Vecelli (or Vecellio), (circa 1489-1576; known in English as Titian), basalica of Santa Maria della Salute, Venice.  The Christian holy day of Pentecost (celebrated 50 days after Easter Sunday) commemorates the descent of the Holy Spirit upon the Apostles and other followers of Jesus Christ while they were in Jerusalem celebrating the Feast of Weeks.

The Trinity is one of Christianity’s central doctrines, the unity of Father, Son, and Holy Spirit as three persons in the one Godhead.  One of the most important Christian affirmations about God, it’s rooted in the idea God came to meet Christians in a threefold figure: (1) as Creator, Lord of the history of salvation, Father, and Judge, as revealed in the Old Testament; (2) as the Lord who, in the incarnated figure of Jesus Christ, lived among human beings and was present in their midst as the “Resurrected One”; and (3) as the Holy Spirit, whom they experienced as the helper or intercessor in the power of the new life.  In the Roman Catholic Church, the Sign of the Cross is made in the name of the Father and of the Son and of the Holy Spirit.  It’s a myth that prior to Vatican II (the Second Vatican Council 1962-1965), the Third Person of the Trinity was always referred to in English as the Holy Ghost and one of the council’s decisions was to replace this with Holy Spirit.  Although it’s true Pius XII (1876–1958, pope 1939-1958) authorized several bilingual rites that included Holy Spirit, this was merely procedural and a formalization of processes for the publishing of new editions of existing works. Well before the twentieth century, the shift to Holy Spirit had become almost universal in translation although use of the older form persisted because of the reverence for tradition among some congregations (if not always the clergy) and a fondness, particularly in the Anglican community, for earlier translations, especially the Book of Common Prayer (1549-1622) and the King James version of the Bible (KJV: 1611).

Pentecôte (Pentecost, 1732), oil on canvas by Jean Restout (1692–1768), Louvre Museum, Paris.

The change reflects the evolution of words but, as a matter of Christian theology, "Holy Ghost" and "Holy Spirit" mean exactly the same thing.  The early translators were influenced by ghost being of Germanic origin and, as the Old English gast inherited the original meaning “soul, life, breath, good or bad spirit, angel or demon”, they used gast to translate the Latin Spiritus: thus Holy Ghost.  Although the more modern sense of a disembodied dead person dates from the late fourteenth century, it long remained rare and when translating the Bible into English the scholars behind the KJV opted mostly to use Holy Ghost which enjoys 90 entries compared with seven for Holy Spirit (between translators it's thought there were only linguistic and not doctrinal differences).  Either as literature or theology, there’s nothing in the texts to suggest any difference of meaning between the two, the conclusion of biblical scholars being the choices were wholly arbitrary and probably an unintentional consequence of the KJV being translated from the Greek into English by different committees.  One committee translated hagion pneuma as Holy Spirit while the other preferred Holy Ghost and when the work of the two bodies was combined, the differences remained.  In English, the meaning shift of ghost was induced essentially by its adoption in literature and popular culture, the sense long universally understood to be that of the spectre of a deceased person or a demonic apparition, hardly an association the church found helpful.  It hasn’t wholly been replaced however, some editions of the Book of Common Prayer still are printed with the phrase “He may receive the benefits of absolution, together with ghostly counsel and advice, to the quieting of his conscience.”

Unrelated to etymological matters however, there is one fine theological point about the Trinity.  It took some time for the Patristic Fathers (the early Christian writers of the period generally considered to run from the end of New Testament times or end of the Apostolic Age (circa 100 AD) to either the Council of Chalcedon (451 AD) or the Second Council of Nicaea (787 AD)) to work out the Trinity was three persons, but one God.  The Old Testament foretold the visit to earthly life of the Messiah, but did not name him explicitly as Jesus, seeing the Holy Spirit as a manifestation of God, but did not see Him as a separate person of the one Godhead.  Despite the implications of that, at least since the still influential Saint Augustine of Hippo (354–430), it’s never been an orthodox view the Old Testament should be thought incomplete.  Benedict XVI (1927–2022; pope 2005-2013, pope emeritus 2013-2022), always one to find a fine theological point, noted “Christians do not read the Old Testament for its own sake but always with Christ and through Christ, as a voyage to Truth through continuing Revelation.”

Rolls-Royce and Ghosts, ancient & modern

A century-odd apart: 1902 Rolls-Royce Silver Ghost (left) and Paris Hilton's 2010 Rolls-Royce Ghost (right).

Although for model names Rolls-Royce has borrowed from the atlas (Corniche, Camargue), their most frequent source has been the spirit world (Ghost, Phantom, Wraith,  Spectre) and the Silver Ghost (1906-1926) was the car that cemented the company's reputation for quality.  Sometime during its life, it may well have deserved to be regarded "the best car in the world" and while that term a long ago ceased to be useful, Rolls-Royce have at times justified the tag "best-made cars in the world".  Some might have matched the quality of the fit and finish but it's doubtful many have ever done it better and such was the reputation the Silver Ghost quickly gained that the name (coined by the Autocar magazine and not the factory) overtook the line.  Originally, the Silver Ghost had been but one model in a range available on their standard (40/50 hp) chassis but the name so captured the public imagination that, eventually, the factory relented and when the first of the Phantom line was released in 1926, Silver Ghost for all the 40/50 cars it became.  Perhaps surprisingly, although in the subsequent century there were many uses of the "silver" element (Silver Wraith, Silver Dawn, Silver Cloud, Silver Shadow, Silver Spirit, Silver Spur & Silver Seraph), it wasn't until 2009 the "Ghost" name was revived and (since 2021 in its second generation), it remains in production, the line augmented in 2011 by the Ghost EWB (extended wheelbase).  Plenty of manufacturers have over the years listed LWB (long wheelbase) models but EWB was a genuinely novel abbreviation, the factory not commenting on whether LWB had become "a bit common" or it was just a piece of "product differentiation".      

RAF (Royal Air Force) Rolls-Royce Silver Ghost armored car, Iraq, circa 1936.

The Silver Ghost also had what may seem an improbable career as a military vehicle, the factory eventually building 120 armored cars on the chassis, a role to which it was well-suited because famously it was robust enough to survive the often rough roads throughout the British Empire.  Although the period of intended service on the Western Front during World War I (1914-1918) was shortened when the "war of movement" anticipated upon the outbreak of hostilities quickly gave way to effectively static trench warfare, the machines proved ideally suited to the conditions in the Middle East, the most famous the squadron used by T.E. Lawrence (Lawrence of Arabia; 1888–1935) in battles against Ottoman forces during World War I.  What the British discovered was the tactics the Royal Navy honed at sea for 300-odd years could be applied to motorized operations across vast sandy stretches, detachments of armored cars able to be handled like squadrons of destroyers.  Lawrence remarked the Rolls-Royces were “more valuable than rubies” in desert combat and that he’d be content with one for the rest of his life were it to be supplied with tyres and petrol, the big, heavy Ghosts prone voraciously to chew through both.  In many parts of the empire, numbers of the armoured cars remained in service well into the 1930s (valued especially by the Raj in India) and the last was retired from service with the Irish Free State only in 1944, new tyres having become unobtainable.

Mushroom

Mushroom (pronounced muhsh-room)

(1) Any of various fleshy fungi including the toadstools, puffballs, coral fungi, morels etc; any of several edible species, especially of the family Agaricaceae, as Agaricus campestris meadow mushroom, or field mushroom, cultivated for food in many places.

(2) A fungus producing such fruiting bodies.

(3) Anything of similar shape or correspondingly rapid growth.

(4) As ellipsis of “mushroom cloud”, a large, mushroom-shaped cloud of smoke or rubble, formed in the atmosphere as a result of an explosion (or other sudden release of energy), especially a nuclear explosion.

(5) Of, consisting of, or containing mushrooms.

(6) Resembling a mushroom in shape or form; to have or assume the shape of a mushroom.

(7) Of rapid growth and often brief duration (to spread, grow, or develop quickly).

(8) To gather mushrooms (typically as “mushrooming”, practiced by a mushroomer).

(9) As “magic mushroom” (used typically in the plural), any mushroomlike fungus that after ingestion induces psychedelic effects (“shrooms” to users, “psilocybin mushroom” to clinicians in some jurisdictions where prescription is now lawful).

(10) In ballistics (of a bullet), to form the shape of a mushroom when striking a soft target.

(11) In bar billiards, any of the mushroom-shaped pegs.

(12) In architecture, a concrete column with a thickened portion at the top, used to support a slab.

(13) In slang, an individual who rises rapidly from obscurity or poverty (now rare and displaced by “upstart”); the figurative sense of something that grows very quickly or seems to appear suddenly remains in use.

1350–1400: Following the usual conventions in English, it may be expected the construct was mush- + -room but those words wholly are unrelated and the ultimate source is unknown.  Mushroom was an alteration (by folk etymology) of the Middle English muscheron & musseroun, from the eleventh century Middle French mousseron, from the Anglo-Norman musherum & moscheron, from the Old French moisseron, from the Late Latin mussiriōn- (stem of mussiriō).  The Old French word had a murky history and etymologists suspect it was from the Old French mosse & moise (moss (from which modern French gained mousse (on the basis of the first known use being of a type of fungus which grows in moss))), from the Frankish mosu (moss) or the Old Dutch mosa (moss).  The Old French was akin to the Old High German mosa (moor, swamp), the Old High German mos (moss, bog) & mios (moss, mire), the Old English mēos (moss) & mōs (bog, marsh), the Old Norse mosi (moss) & myrr (bog, mire), all from the Proto-Germanic musą, muso & miuziz (mosses, bog), from the primitive Indo- European mews- (mosses, mold, mildew).  It displaced the native Old English swamm.  The clipping shroom is a synonym (most popular with users of magic mushrooms) and the spelling mushrump is long obsolete (the modern spelling more or less standardized by the 1560s).  Mushroom is a noun, adjective & verb, mushroomed is a verb, mushrooming is a noun & verb, mushroomer is a noun, mushroomic, mushroomless, mushroomlike, mushroomoid & mushroomy are adjectives; the noun plural is mushrooms.

Lindsay Lohan's mushroom gravy.

Ingredients

3 tablespoons olive oil or butter
3 cups thinly sliced baby portabella mushrooms or white button mushrooms
½ cup finely chopped onion
1-2 cloves garlic, minced
3 tablespoons all-purpose flour or cup for cup gluten-free flour
3 cups beef broth/stock or vegetable stock
Salt and pepper to taste

Instructions

(1) In a large skillet, heat oil over medium-high heat.  Sautee mushrooms and onions until they are nicely browned (should take around 7 minutes).  Add in garlic and stir until fragrant (about 30 seconds).

(2) Stir in the flour and cook for 1 minute.  Whisk in the broth, remembering to scrape from the bottom of pan all the "browned bits" (the best part).  Reduce to a simmer and simmer until thickened, then remove from heat.  Taste for salt and pepper and season to taste.

The alternative etymology (noting the Ancient Greek μύκης (múkēs) (mushroom) suggests the Old French may be of pre-Roman origin and it remains a matter of debate among etymologists (almost all lexicographers stick to “of uncertain origin”).  What is agreed is the noun “mushroom” was at first applied to almost any of the larger fungi but later to the agaricoid fungi (especially the edible varieties).  The figurative use for something or someone that makes a sudden appearance in full form dates from the 1590s; it was applied especially an upstart person (bounder) or family (those who rose rapidly from a low station in life).  All that was based on the mushroom’s impressively rapid rate of growth and by the 1740s the figurative use substantially has lost the “upstart” sense and came to be used generally of “expanding or increasing rapidly; to rise suddenly in position or rank”.  The famous (or infamous) “mushroom cloud” was first widely described in 1916 (World War I (1914-1918) a time & place of big explosions witnessed by many with cameras) but the OED (Oxford English Dictionary) cites the first use as dating from US in 1902.  It thus long pre-dates the nuclear-age but the phenomenon would for millennia (long before there were explosives) have been observed by those watching volcanic eruptions.  After photographs of the immediate aftermath of the A-bombing of Hiroshima & Nagasaki (August 1945) widely were publicized, the term became popular and spread to many aspects of popular culture including film, art and T-shirts.

Germania, Berlin’s sandy soil and the “mushroom” used to test for sinkage

Germania model, circa 1940.  The scale of the buildings was monumental and Speer was aware of the comparisons with the Rome and Athens of Antiquity, even writing (a not wholly original) “Theory of Ruin Value” arguing the importance of designs that might, thousands of years hence, leave “magnificent ruins”.

Until in the twenty-first century the CCP (Chinese Communist Party) began doing things at a scale once thought unsustainable, the urban-redevelopment plan imagined on a grandest scale was that for Berlin designed by Albert Speer (1905–1981; Nazi court architect 1934-1942; Nazi minister of armaments and war production 1942-1945).  What was the be the capital of the Third Reich (and, in the minds of the most delusional of the Nazis: “of the world”) would be renamed Germania and, as Adolf Hitler (1889-1945; Führer (leader) and German head of government 1933-1945 & head of state 1934-1945) told Speer’s wife: “Your husband is going to build buildings for me the likes of which haven't been built for 4,000 years.”  Prone to lies and exaggeration, this was one of the occasions the Führer was being truthful and although there was little the plans for Germania that was original, what was impressive was the scale, Speer taking reference points from architectural history (the Pantheon in Rome, the Arc de Triomphe in Paris) and making the German versions bigger.  Although at the time much taken with what he called the regime’s “Empire style”, in his (sometimes reliable) post-war memoirs (Erinnerungen (Memories or Reminiscences) and published in English as Inside the Third Reich (1969)) he admitted the stylistic failure, above all because the architecture wholly was disconnected from the human scale.

The mushroom, Speer's improbable architectural legacy.

Of all that Speer planned for Hitler's megalomaniacal vision of Germania, only small fragments remain but the strangest and largest relic is the Schwerbelastungskörper (heavy load-bearing body) a concrete structure 30 metres (100 feet) tall and weighing 12,650 tons (11,476 tonnes); locals nicknamed it der Pilz (the mushroom).  Located on the city’s southern edge (near modern day Südkreuz station), the giant concrete cylinder was in 1941 erected to test the suitability of Berlin’s sandy soil, something of great significance because most of Germania’s large, representational buildings would be constructed from granite, concrete & steel; although structural engineers could solve the challenges the architects designs presented, the only way to be certain the soil could handle such weight was to conduct a practical, real-time, full-size experiment.  While the data were required for much of what was planned, of particular interest was intended landmark of the Victory Arch which, at 117 metres (384 feet) tall and 170 metres (558 feet) wide would obviously exert much pressure and, having the foundations sinking into the sandy soil was less than ideal.  With a footprint of exactly 100 m³, Speer’s giant, reinforced concrete “mushroom” was placed in a way that would as closely as possible emulate the forces involved; it sat 18 metres (60 feet) deep with the above-ground extending 14 metres (46 feet) high while inside there were a number of measuring devices recording movement.  As things transpired the instruments recorded sinking between 110-180 mm (4.3-7.1 inches) across the six measuring points and that was well beyond the 60 mm (2.4 inches) deemed by Speer as the upper limit of acceptability.  Whether the findings would have compelled a change to the arch or indeed any of Germania’s other gargantuan designs will never be known because, as the tide of war turned, the resources devoted to the project were re-allocated to more urgent tasks and by 1943 Speer, by then also minister of armaments and war production, quietly shut-down the Germania planning office.  So little was built and less survived but the “mushroom” remained and is now a tourist attraction and a site visited by many organized tours.

The mushroom cloud

Tsar Bomba, the largest ever nuclear test, detonated by the Soviet Union in October 1961.

As the photographs suggest, the mushroom clouds generated by large volcanic eruptions and the detonation of nuclear weapons can look similar because the same atmospheric physics are operating despite the underlying energy-release mechanisms being completely different and, counterintuitively, there is no precise TNT (abbreviation of trinitrotoluene (an explosive substance used in blasting)) equivalent threshold above which every explosion produces a mushroom cloud. A mushroom cloud is principally a consequence of buoyancy and atmospheric fluid dynamics, rather than merely a product of energy released, thus the phenomenon can occur with nuclear explosions, large conventional explosions, volcanic eruptions and even especially intense fires.  What an explosion does is produce a very hot, rapidly expanding mass of gas and entrained material and this rises because the air above has less resistance than the ground below; it rises because it has acquired enormous upward momentum and, as it rises, it entrains surrounding air.  The most important mechanism in the ultimate generation of a mushroom cloud’s distinctive shape is a phenomenon plasma physicists call “thermal buoyancy”.

Physics of a mushroom cloud (left), the fluid dynamics an interplay of energy, matter & air temperature and a mushroom cloud T-shirt (right), the images used sometimes for political messaging and sometimes just for dramatic effect. 

Fernando Famiani's photograph of the eruption of Mt Etna, Sicily, Italy, December 2015, shot from the outskirts of the village of San Teodora.

Familiar from many conditions in climate science, as hot material rises, the heated gas being less dense than the surrounding atmosphere, the rising plume entrains cooler air, increasing its volume while reducing its average temperature, a process that continues until its density approaches that of the surrounding atmosphere at which point, the rising material spreads laterally, producing the mushroom cloud’s characteristic “cap”, the outer regions circulating downwards, maintain the shape of the stem.  There are scaling relationships between explosion energy and the size, height and evolution of the resulting plume and consequently, as a general principle, as explosions become larger, a mushroom cloud becomes increasingly likely under appropriate atmospheric conditions.  So the mushroom cloud is a product of the environment; the same release of energy in different conditions (an explosion deep underground; a large underwater explosion; an explosion in a confined structure; energy released over a sufficiently long period rather than instantaneously) will tend not to create one whereas a relatively modest release of energy can produce one if the geometry and atmospheric conditions are favourable.  So, a mushroom cloud is a thing not of yield but of atmospheric conditions.

Death cap mushrooms.

In 2023, Australian mother of two Erin Patterson (b 1974) murdered three of her relatives and nearly killed a fourth by preparing for them a lunch of Beef Wellingtons laced with highly toxic death cap mushrooms.  Amanita phalloides (the more evocative “death cap” the common name) is a basidiomycete fungus and mushroom (one of many in the genus Amanita) and although originally from Europe, it has spread around the planet as have many species (zoological & botanical) in the age of mass-movement of people and goods.  Dangerously, the death cap closely resembles a number of (variously bland and delicious) edible mushrooms used in many dishes so mushroomers must take care when mushrooming (harvesting wild mushrooms).  They’re the most poisonous of all known mushrooms and a single example contains enough toxin to kill an adult human; unsurprisingly, death caps are estimated to be responsible for as many as 90% of the annual death-toll from eating toxic mushrooms.  Quite what is the extent of the annual loss of life is uncertain because in rural parts of Asia (where foraged mushrooms are common in diets) the statistics are not reliable but it’s believed the numbers bounce-around between 100-300.  The principal toxic constituent (hardly affected by cooking or freezing) is α-Amanitin which causes liver and kidney failure.

Erin Patterson, prior to charges being laid.

It was severe liver failure that was the cause of the death of Erin Patterson’s three victims, all of whom died within a week of falling ill (despite one receiving a liver transplant); the sole survivor recovered after several weeks of treatment.  The trial was conducted before a jury that delivered a guilty verdict on all three charges and the judge handed down a sentence of life imprisonment with a non-parole period of 33 years; there was immense international interest in the case and it was the first sentencing hearing in the state of Victoria to be live-streamed.  In what was anyway a macabre tale, one interesting aspect was the way Erin Patterson chose to learn about the nature of the death cap; some will have drawn the conclusion: “When researching murder-methods, don’t use one’s own digital devices.”  The case currently is on appeal, the defense seeking a retrial on several procedural and technical grounds while the state is arguing the sentence was “manifestly inadequate” and there should be no possibility of parole.  On X (formerly known as Twitter), some were even more unforgiving, suggesting: “She should get the chair.”

Cryptic crochet: Erin Patterson crocheted a rat as a gift for her defense counsel.  According to press reports, it was an expression of “thanks” but a crocheted mushroom would have been a nice touch.

In her cell, “mushroom lady” (the public's choice of dub upon the case being publicized) is said to pass the hours crocheting, an intricate, time-consuming business but for those serving long prison sentences, time is relative in a way different to that made famous by Albert Einstein (1879-1955) and for the seven Nazis incarcerated in Spandau prison after the first Nuremberg Trial (1945-1946), “time” often came up in their sometimes awkward conversations.  Grand Admiral Erich Raeder (1876–1960; head of the German Navy 1928-1943) served as prison librarian and, responding to a complaint from one of his fellow inmates that his handing out the four permitted (and by 1954 uncensored) newspapers (one selected by each of the powers administering the prison (France (Kurier), the UK (Frankfurter Allgemeine Zeitung), US (Die Welt) & USSR (Berliner Zeitung)) bound in one folder meant “It will take too long for one person to read all four newspapers”, answered “That doesn't matter. You've got plenty of time, after all.”  Despite that uncompromising start, within two days the admiral relented, averting the threat of mutiny by distributing the papers singularly.

According to Australian neuroscientist Dr Sarah McKay, knitting and crochet can be “deceptively good” for the brain, being an “ideal mix of repetition plus cognitive challenge”, helping individuals regulate their mood and attention span.  She explained the mechanism by pointing out in crocheting: “You have to remember where you're up to, you have to problem solve, you have to make decisions, you're constantly challenging yourself if you're doing more and more complicated patterns but, at the same time, it's challenging but it's low stakes… which I think might be one of the best kinds [of cognitive challenge] we can have.  We're mastering a skill, we're getting better at that and we're kind of just doing the task for the sake of doing the task … it's quite a simple form of mastery and there's something really soothing and good for our mood about that.”  Intriguingly, Dr McKay now has one potential subject available for what would be a unique, longitudinal study: mushroom lady sitting for 33 years in solitary confinement, crocheting stuff.  Such parameters would of course never be approved by any university ethics committee so for researchers interested how such things affect a brain operating in a most unusual environment, there are possibilities. 

Ozempic: The famous “fat jab”.  Now on GLP-1 fat jabs, hopefully the prison authorities will permit mushroom lady (once slender) to create content and open an OnlyFans page with proceeds going to the families of her victims.  There would be a viewership for such content, some of whom would seek contact.

One unexpected coda to the trial was the announcement mushroom lady has been granted access to taxpayer-funded Ozempic (a GLP-1 (glucagon-like peptide-1) appetite suppressant), the official explanation being her inability to pursue an exercise regime while in solitary confinement; because of the nature of her offences, it's expected she'll remain in solitary confinement for the foreseeable future (33 years presumably within the vista of “foreseeable”).  Unfortunately, her previous exercise techniques were not disclosed, something that would have been of interest to many pursuing weight-loss.  Doubtlessly anticipating some public outrage at the thought taxpayers would be footing the bill for mushroom lady to get free “fat jabs”, a spokesperson for Victoria’s Department of Justice issued a statement confirming weight loss drugs were just another medicine and would be provided to prisoners based on a clinician's advice: “Prescriptions are only given by clinicians when there’s a clear medical need - like preventing serious conditions such as type 2 diabetes.  Access to prescribed weight loss medication was introduced in response to recommendations from the Coroner following a death in custody linked to obesity.”  The convicted mass-murderer had told the court she “had a problem” with body image and binge-eating, a perhaps unnecessary confirmation given some of the photographs circulated by the media.