unicornyoudaoicibaDictYouDict[unicorn 词源字典]
unicorn: [13] Legends of a one-horned beast abounded in ancient times, perhaps inspired by the rhinoceros, or a sideways view of an antelope. When the early Greek translators of the Hebrew Bible came across the word re’em, which seems to have denoted a sort of wild ox, they rendered it monókerōs (literally ‘onehorn’), perhaps identifying it with the rhinoceros. The Vulgate turned this into Latin as unicornis, a noun use of an already existent Latin adjective meaning ‘one-horned’, formed from ūnus ‘one’ and cornū ‘horn’ (a relative of English horn).
=> horn[unicorn etymology, unicorn origin, 英语词源]
CapricornyoudaoicibaDictYouDict
zodiac sign, late Old English, from Latin Capricornus, literally "horned like a goat," from caper (genitive capri) "goat" (see cab) + cornu "horn," from PIE *ker- (1) "horn; head, uppermost part of the body" (see horn (n.)); a loan-translation of Greek Aigokheros, the name of the constellation. Extended 1894 to persons born under the sign.
cow (n.)youdaoicibaDictYouDict
Old English cu "cow," from Proto-Germanic *kwon (cognates: Old Frisian ku, Middle Dutch coe, Dutch koe, Old High German kuo, German Kuh, Old Norse kyr, Danish, Swedish ko), earlier *kwom, from PIE *gwou- "cow, ox, bull" (cognates Sanskrit gaus, Greek bous, Latin bov-, Old Irish bo, Latvian guovs, Armenian gaus "cow," Slovak hovado "ox"), perhaps ultimately imitative of lowing (compare Sumerian gu, Chinese ngu, ngo "ox"). In Germanic and Celtic, of females only; in most other languages, of either gender. Other "cow" words sometimes are from roots meaning "horn, horned," such as Lithuanian karve, Old Church Slavonic krava. Compare kine.
forked (adj.)youdaoicibaDictYouDict
c. 1300, "branched or divided in two parts," past participle adjective from fork (v.). Of roads from 1520s; from 1550s as "pointing more than one way." In 16c.-17c. sometimes with a suggestion of "cuckold," on the notion of "horned." Forked tongue as a figure of duplicitous speech is from 1885, American English. Double tongue in the same sense is from 15c.
greenhorn (n.)youdaoicibaDictYouDict
mid-15c., "horn of an animal recently killed," also "young horned animal," from green (adj.) in sense of "new, fresh, recent" + horn (n.). Applied to new soldiers from c. 1650; extended to any inexperienced person by 1680s.
horn (n.)youdaoicibaDictYouDict
Old English horn "horn of an animal," also "wind instrument" (originally made from animal horns), from Proto-Germanic *hurnaz (cognates: German Horn, Dutch horen, Gothic haurn), from PIE *ker- (1) "horn; head, uppermost part of the body," with derivatives refering to horned animals, horn-shaped objects and projecting parts (cognates: Greek karnon "horn," Latin cornu "horn," Sanskrit srngam "horn," Persian sar "head," Avestan sarah- "head," Greek koryphe "head," Latin cervus "deer," Welsh carw "deer"). Reference to car horns is first recorded 1901. Figurative senses of Latin cornu included "salient point, chief argument; wing, flank; power, courage, strength." Jazz slang sense of "trumpet" is by 1921. Meaning "telephone" is by 1945.
pollard (n.)youdaoicibaDictYouDict
1540s, "de-horned animal," from poll (v.2) + -ard. In reference to polled trees, from 1610s.
prong (n.)youdaoicibaDictYouDict
early 15c., prange "pointed instrument;" mid-15c., pronge "pain," from Anglo-Latin pronga "prong, pointed tool," of unknown origin, perhaps related to Middle Low German prange "stick, restraining device," prangen "to press, pinch." See also prod, which might be related. Prong-horned antelope is from 1815 (short form pronghorn attested from 1826).
reindeer (n.)youdaoicibaDictYouDict
c. 1400, from a Scandinavian source such as Old Norse hreindyri "reindeer," from dyr "animal" (see deer) + hreinn, by itself the usual name for the animal, from Proto-Germanic *khrinda- (cognates: Old English hran "reindeer;" German Renn "reindeer," which was altered by folk etymology influence of rennen "to run;" Swedish ren-ko "female reindeer," with ko "cow" (n.)).

Probably from PIE *krei-, from base *ker- (1) "horn, head," with derivatives referring to horned animals (both male and female reindeer have horns; those of the male are remarkable), and thus perhaps cognate with Greek krios "ram" (see kerato-). Older sources connect it to words in Lapp or Finnish. French renne, Spanish reno, Italian renna ultimately are from Germanic.
rhinoceros (n.)youdaoicibaDictYouDict
c. 1300, from Latin rhinoceros, from Greek rhinokeros, literally "nose-horned," from rhinos "nose" (a word of unknown origin) + keras "horn" (see kerato-). Related: Rhinocerotic.
What is the plural of rhinoceros? ... Well, Liddell and Scott seem to authorize 'rhinocerotes,' which is pedantic, but 'rhinoceroses' is not euphonious. [Sir Charles Eliot, "The East Africa Protectorate," 1905]
shoehorn (v.)youdaoicibaDictYouDict
in the figurative sense of "to put or thrust (something somewhere) by means of a 'tool,' " 1859, from shoehorn (n.). Earlier it meant "to cuckold" (mid-17c.), with a play on horn (n.). Related: Shoehorned.
sidewinder (n.)youdaoicibaDictYouDict
small horned rattlesnake of southwestern U.S., 1875, American English, from side (adj.) + agent noun of wind (v.), so called in reference to its "peculiar lateral progressive motion." Also sidewiper (1888).
triceratops (n.)youdaoicibaDictYouDict
dinosaur genus, 1890, from Greek trikeratos "three-horned" + ops "face," literally "eye," from PIE *okw- "to see" (see eye (n.)). The first element is from tri- "three" (see three) + keras (genitive keratos) "horn" (see kerato-).
acrididyoudaoicibaDictYouDict
"An orthopteran insect of the family Acrididae, which includes locusts and typical (short-horned) grasshoppers", Late 19th cent. From scientific Latin Acrida, genus name ( Linnaeus Systema Naturae (ed. 10, 1758) I. 427; from ancient Greek ἀκρίδ-, ἀκρίς locust: see acrid) + -id, after scientific Latin Acridiidae, family name.
tragopanyoudaoicibaDictYouDict
"An Asian pheasant of highland forests, the male of which has brightly coloured plumage used in courtship", Modern Latin, from Greek, the name of a horned bird, from tragos 'goat' + the name Pan (see Pan).