Obliterate

Obliterate (pronounced uh-blit-uh-reyt (U) or oh-blit-uh-reyt (non-U))

(1) To remove or destroy all traces of something; do away with; destroy completely.

(2) In printing or graphic design, to blot out or render undecipherable (writing, marks, etc.); fully to efface.

(3) In medicine, to remove an organ or another body part completely, as by surgery, disease, or radiation.

1590–1600: From the Latin oblitterātus, perfect passive participle of oblitterō (blot out), from oblinō (smear over) and past participle of oblitterāre (to efface; cause to disappear, blot out (a writing) & (figuratively) cause to be forgotten, blot out a remembrance), the construct being ob- (a prefixation of the preposition ob (in the sense of “towards; against”)) + litter(a) (also litera) (letter; script) + -ātus (-ate).  The suffix -ate was a word-forming element used in forming nouns from Latin words ending in -ātus, -āta, & -ātum (such as estate, primate & senate).  Those that came to English via French often began with -at, but an -e was added in the fifteenth century or later to indicate the long vowel.  It can also mark adjectives formed from Latin perfect passive participle suffixes of first conjugation verbs -ātus, -āta, & -ātum (such as desolate, moderate & separate).  Again, often they were adopted in Middle English with an –at suffix, the -e appended after circa 1400; a doublet of –ee.

The verb obliterate was abstracted from the phrase literas scribere (write across letters, strike out letters).  The noun obliteration (act of obliterating or effacing, a blotting out or wearing out, fact of being obliterated, extinction) dates from the 1650s, from the Late Latin obliterationem (nominative obliteratio), the noun of action from the past-participle stem of oblitterāre (to efface; cause to disappear, blot out (a writing) & (figuratively) cause to be forgotten, blot out a remembrance).  The related late fourteenth century noun oblivion (state or fact of forgetting, forgetfulness, loss of memory) was from the thirteenth century Old French oblivion and directly from the Latin oblivionem (nominative oblivio) (forgetfulness; a being forgotten) from oblivisci, the past participle of oblitus (forget) of uncertain origin.  Oblivion is if interest to etymologists because of speculation about a semantic shift from “to be smooth” to “to forget”, the theory based on the construct being ob- (using ob in the sense of “over”) + the root of lēvis (smooth).  For this there apparently exists no documentary evidence either to prove or disprove the notion.  The Latin lēvis (rubbed smooth, ground down) was from the primitive Indo-European lehiu-, from the root (s)lei- (slime, slimy, sticky).

Obliterate, obliterated & obliterating are verbs, obliterable & obliterative are adjectives, obliterator & obliteration are nouns.  True synonyms include black out, eliminate, eradicate, delete, erase & expunge because to obliterate something is to remove all traces.  Other words often used as synonyms don’t of necessity exactly convey that sense; they include exterminate, annihilate, knock out, obscure, ravage, smash, wash out, wipe out, ax, cancel, cover, cut & defeat.

Strictly speaking, “to obliterate something” means “to remove or destroy all traces” which usually isn’t the case when explosives are used, the result more a wide dispersal of whatever isn’t actually vaporized but there’s something about the word which attracts those who blow-up stuff and they seem often to prefer obliteration to terms which might be more accurate.  As long as the explosion is sufficiently destructive, one can see their point and obliteration does memorably convey the implications of blowing-up stuff.  The word clearly enchanted the US Forest Service which in 1995 issued their classic document Obliterating Animal Carcasses with Explosives, helpfully including a step-by-step guide to the process.  Given it’s probably not a matter about which many have given much thought, the service explained obliterating large animal carcasses was an important safety measure in wilderness recreation areas where the remains might attract bears, or near picnic areas where people obviously wouldn’t want rotting flesh nearby.  A practical aspect also is that in many cases there is no way conveniently to move or otherwise dispose of a large carcass (such as a horse or moose which can weigh in excess of 500 KG (1100 lb) which might be found below a steep cut slope or somewhere remote.  So, where physical transportation is not practical, the chemistry and physics of explosives are the obvious alternative, the guide recommending fireline devices (specially developed coils containing explosive powder), used also to clear combustible materials in the path of a wildfire. 

Interestingly, the guide notes there will be cases in which the goal might not be obliteration.  In some ecosystems, what is most desirable is to disperse the carcass locally into the small chunks suited to the eating habits of predators in the area and when properly dispersed, smaller scavenging animals will break down the left-overs, usually within a week.  To effect a satisfactory dispersal, the guide recommends placing 20 lb (9 KG) of explosives on the carcass in key locations, then using a detonator cord to tie the charges together, the idea being to locate them on the major bones, along the spine.  However, in areas where there’s much human traffic, obliteration is required and the guide recommends placing 20 lb (9-KG) pounds of explosives on top and a similar load underneath although it’s noted this may be impossible if the carcass is too heavy, frozen into the ground, floating in water or simply smells too ghastly for anyone to linger long enough to do the job.  In that case, 55 lb (25 KG) of fireline should be draped over the remains although the actual amount used will depend on the size of the carcass, the general principle being the more explosives used, the greater the chance obliteration will be achieved.  Dispersal and obliteration are obviously violent business but it’s really just an acceleration of nature’s decomposition process.  Whereas a big beast like a horse can sit for months without entirely degrading, if explosives are used, in most cases after little more than a week it’d not be obvious an animal was ever there.  With regard to horses however, the guide does include the warning that prior to detonation, “horseshoes should be removed to minimize dangerous flying debris.”  Who knew?

It’s important enough explosives are used to achieve the desired result but in carcass disposal it's important also not to use too much.  In November 1970, the Oregon Highway Division was tasked with blowing up a 45-foot (14 m) eight-ton (8100 KG) decaying whale which lay on the shores near the town of Florence and they calculated it would need a half-ton (510 KG) of dynamite, the presumption being any small pieces would be left for seagulls and other scavengers.  Unfortunately, things didn’t go according to plan.  The viewing crowds had been kept a quarter-mile (400 m) from the blast-site but they were forced to run for cover as large chunks of whale blubber started falling on them and the roof of a car parked even further away was crushed.  Fortunately there were no injuries although most in the area were splattered with small pieces of dead whale.  Fifty years on, Florence residents voted to name a new recreation ground Exploding Whale Memorial Park in honor of the event.