Hobnail

Hobnail (pronouned hob-neyl)

(1) A large-headed nail for protecting the soles of heavy boots and shoes, thus, when used as a modifier: hobnail boots.

(2) A small allover pattern consisting of small tufts, as on fabrics, or of small studs, as on glass.

(3) A rustic (obsolete).

(4) In medicine, a Slang term used by clinicians to describe the appearance of the organ in those suffering cirrhosis of the liver.

(5) In medicine, cellular morphology pathognomonic for clear cell adenocarcinoma of the ovary.

1585-1595: The construct is hob + nail.  Hob is related to hub, but the ultimate origin of both words is so obscure few etymologists have attempt to disentangle.  Nail in the sense of that which grows from the ends of digits is pre 900 from the Middle English nail & nayl, from the Old English negel (tapering metal) & nægl (fingernail (handnægl)).  It was cognate with the Old Frisian neil, the Old Saxon & Old High German nagal, the Dutch nagel & German Nagel and the Old Norse nagl (fingernail), all from the unattested Germanic naglaz; akin as derivative to the Lithuanian nãgas & nagà (hoof), the Old Prussian nage (foot) and the Old Church Slavonic noga (leg, foot). Nail in the sense used in "hobnail" is from the Middle English naylen, from the Old English næġlan, again, words with long, tortured histories.  The original sense was of the “short, thick nail with a large head", the construction using the element hob probably as an identification with the "rounded peg or pin used as a mark or target in games", that form of unknown origin and dating from the 1580s.  Because they were used to make heavy boots and shoes, the word was used figuratively from the seventeenth century for a "rustic person or simpleton", John Milton (1608–1674) in Colasterion (1645) writing “…the word Politician is not us'd to his maw, and therupon he plays the most notorious hobbihors, jesting and frisking in the luxury of his non-sense with such poor fetches to cog a laughter from us, that no antic hobnaile at a Morris, but is more hansomly facetious”.

From fireplace to fashion

Dating from 1505–1515, hub was a variant of obsolete hub hob (in a fireplace) and related to the obsolete hubbe from the 1510s and an etymology unrelated to the thirteenth century use as an affectionate diminutive for Robert or Robin.  Hob as a word to describe the side (the flat projection or iron shelf at the side of a fire grate, where things are put to be kept warm) of a fireplace was common by 1670s and in some English-speaking countries is used still to refer to the top cooking surface on a cooker or stove (the cooktop typically comprising several (often four) cooking elements also known as “rings” or elements”).  Etymologists are divided on whether the use of hob to describe a "clown, prankster" is a equating of such people with the yokels to whom it had long been applied or, a shortening for hobgoblin (the phrase “to play (the) hob" is documented in 1834 as meaning “to make mischief").  In quoits, a hob is a rounded peg used as a target.  In machine tools, it’s a kind of cutting tool, used to cut the teeth of a gear and can be used to refer to the hub or a wheel.  In zoology, a hub is a male ferret.

The long established meanings (1) the thin, horny plate at the ends of fingers and toes on humans and some other animals and (2) a spike-shaped metal fastener used for joining wood or similar materials ran in parallel.  It also one referred to a round pedestal on which merchants conducted business and a (now archaic) English unit of (usually cloth) measure length equivalent to 1 twentieth of an ell or one sixteenth of a yard (2 ¼ inches (57.15mm)).  The sense "fingernail" seems to have been the original.

The hobnailed boot (known as tackety boots in Scotland) has been used since antiquity, both by workmen and the military and for the same reasons: durability and traction.  In the army of Ancient Rome, they were called caligae and remained common in military formations until well into the twentieth century, supplanted only as techniques with rubber and synthetic materials improved.  Before the development of crampons, they were widely used in mountaineering.

Hobnail glassware.  A mass-produced novelty item and not part of the glass-blower's technique, it has no traditions.

Lindsay Lohan wearing hobnailed fabric.