Proto-Indo-European root meaning "horn; head," with derivatives referring to horned animals, horn-shaped objects, and projecting parts.
It forms all or part of: alpenhorn; Capricorn; carat; carotid; carrot; carotene; cerato-; cerebellum; cerebral; cerebrum; cervical; cervix; charivari; cheer; chelicerae; corn (n.2) "hardening of the skin;" cornea; corner; cornet; cornucopia; cranium; flugelhorn; hart; hartebeest; horn; hornbeam; hornblende; hornet; keratin; kerato-; migraine; monoceros; reindeer; rhinoceros; saveloy; serval; triceratops; unicorn.
It is the hypothetical source of/evidence for its existence is provided by: Sanskrit srngam "horn;" Persian sar "head," Avestan sarah- "head;" Greek karnon "horn," koryne "club, mace," koryphe "head;" Latin cornu "horn," cervus "deer;" Old English horn "horn of an animal;" Welsh carw "deer."
"heavy one-handed metal weapon, often with a spiked head, for striking," c. 1300, from Old French mace "a club, scepter" (Modern French massue), from Vulgar Latin *mattea (source also of Italian mazza, Spanish maza "mace"), from Latin mateola (in Late Latin also matteola) "a kind of mallet." The Latin word perhaps is cognate with Sanskrit matyam "harrow, club, roller," Old Church Slavonic motyka, Russian motyga "hoe," Old High German medela "plow" [de Vaan, Klein].
As a ceremonial symbol of authority or office, a scepter or staff having somewhat the form of a mace of war, it is attested from mid-14c. Related: Mace-bearer.
name of a club founded by Whig politicians in London (Addison and Steele were members), 1703; so called from Christopher ("Kit") Catling, or a name similar to it, a tavernkeeper or pastry cook in London, in whose property the club first met. Hence "a size of portrait less than half length in which a hand may be shown" (1754), supposedly is because the dining room in which portraits of club members hung was too low for half-length portraits.
"pertaining to the head," early 15c., from Latin cephalicus, from Greek kephalikos "pertaining to the head," from kephalē "head" (see cephalo-).
"head of a column or pillar," late 13c., from Anglo-French capitel, Old French chapitel (Modern French chapiteau), or directly from Latin capitellum "head of a column or pillar," literally "little head," diminutive of caput "head" (from PIE root *kaput- "head").
"small, narrow-headed iron golf club," used to get the ball out of ruts or other bad places, 1857, of obscure origin.