aura (n.)youdaoicibaDictYouDict[aura 词源字典]
1870 in spiritualism, "subtle emanation around living beings;" earlier "characteristic impression" made by a personality (1859), earlier still "gentle breeze" (late 14c.), from Latin aura "breeze, wind, air," from Greek aura "breath, breeze," from PIE root *awer- (see air (n.1)).[aura etymology, aura origin, 英语词源]
aural (adj.)youdaoicibaDictYouDict
1847, "pertaining to the ear," from Latin auris "ear" (see ear (n.1)) + -al (1). Meaning "received or perceived by ear" is attested from 1860. Related: Aurally.
aureate (adj.)youdaoicibaDictYouDict
early 15c., "gold, gold-colored," also figuratively, "splendid, brilliant," from Latin aureatus "decorated with gold," from aureus "golden," from aurum "gold," from PIE root *aus- (2) "gold" (cognates: Sanskrit ayah "metal," Avestan ayo, Latin aes "brass," Old English ar "brass, copper, bronze," Gothic aiz "bronze," Old Lithuanian ausas "gold"), probably related to root *aus- "to shine" (see aurora).
aureole (n.)youdaoicibaDictYouDict
early 13c., from Latin aureola (corona), fem. diminutive of aureus "golden" (see aureate). In medieval Christianity, the celestial crown worn by martyrs, virgins, etc., as victors over the flesh.
auricle (n.)youdaoicibaDictYouDict
part of the ear, 1650s, from Latin auricula "ear," diminutive of auris (see ear (n.1)). As a chamber of the heart, early 15c., from Latin, so called from a perceived similarity in shape to an animal's ear.
auricular (adj.)youdaoicibaDictYouDict
1540s, "auditory" (originally of confessions), from Medieval Latin auricularis, from Latin auricula (see auricle). Meaning "pertaining to the ear" is from 1640s.
auriferous (adj.)youdaoicibaDictYouDict
"containing gold," 1727, from Latin aurifer "gold-bearing," from auri-, comb. form of aurum "gold" (see aureate) + -fer "producing, bearing" (see infer).
AurigayoudaoicibaDictYouDict
northern constellation, from Latin auriga "a charioteer, driver," from aureae "bridle of a horse" (from os, genitive oris, "mouth;" see oral) + agere "set in motion, drive, lead" (see act (n.)).
aurochs (n.)youdaoicibaDictYouDict
1766, misapplication to the European bison (Bos bison) of a word that actually refers to a species of wild ox (Bos ursus) that went extinct 17c., from German Aurochs, from Old High German urohso, from uro "aurochs" (cognate with Old English ur, Old Norse ürr), which is of unknown origin, + ohso "ox" (see ox). Latin urus and Greek ouros are Germanic loan-words.
aurora (n.)youdaoicibaDictYouDict
late 14c., from Latin Aurora, the Roman goddess of dawn, from PIE *ausus- "dawn," also the name of the Indo-European goddess of the dawn, from root *aus- (1) "to shine," especially of the dawn (cognates: Greek eos "dawn," auein "to dry, kindle;" Sanskrit usah, Lithuanian ausra "dawn;" Latin auster "south wind," usum "to burn;" Old English east "east").
aurora borealis (n.)youdaoicibaDictYouDict
1620s, "Northern Lights," literally "northern dawn," said to have been coined by French philosopher Petrus Gassendus (1592-1655) after a spectacular display seen in France Sept. 2, 1621; see aurora + boreal. In northern Scotland and among sailors, sometimes called the dancers or the merry dancers.
auroral (adj.)youdaoicibaDictYouDict
1550s, "pertaining to dawn," from aurora + -al (1). Meaning "of the color of dawn" is from 1827; "of the aurora" from 1828.
auscultate (v.)youdaoicibaDictYouDict
"to listen" (especially with a stethoscope), 1832, from Latin auscultatus, past participle of auscultare "to listen attentively to," from aus-, from auris "ear" (see ear (n.1)); "the rest is doubtful" [OED]. Tucker suggests the second element is akin to clinere "to lean, bend."
auscultation (n.)youdaoicibaDictYouDict
"act of listening," 1630s, from Latin auscultationem (nominative auscultatio), noun of action from past participle stem of auscultare (see auscultate). Medical sense is from 1821.
auspex (n.)youdaoicibaDictYouDict
1590s, "one who observes flights of birds for the purpose of taking omens," from Latin auspex "interpreter of omens given by birds," from PIE *awi-spek- "observer of birds," from *awi- "bird" (see aviary) + *spek- "to see" (see scope (n.1)). Compare Greek oionos "bird of prey," also "bird of omen, omen," and ornis "bird," which also could mean "omen."
auspices (n.)youdaoicibaDictYouDict
plural (and now the usual form) of auspice; 1530s, "observation of birds for the purpose of taking omens," from French auspice (14c.), from Latin auspicum "divination from the flight of birds; function of an auspex" (q.v.). Meaning "any indication of the future (especially favorable)" is from 1650s; earlier (1630s) in extended sense of "benevolent influence of greater power, influence exerted on behalf of someone or something," originally in expression under the auspices of.
auspicious (adj.)youdaoicibaDictYouDict
1590s, "of good omen" (implied in auspiciously), from Latin auspicium "divination by observing the flight of birds," from auspex (genitive auspicis) + -ous. Related: Auspiciously; auspiciousness.
Aussie (n.)youdaoicibaDictYouDict
short for Australian (n.) or Australia, attested from 1917.
auster (n.)youdaoicibaDictYouDict
"south wind," late 14c., from Latin auster "the south wind; the south country" (see Australia).
austere (adj.)youdaoicibaDictYouDict
early 14c., from Old French austere (Modern French austère) and directly from Latin austerus "dry, harsh, sour, tart," from Greek austeros "bitter, harsh," especially "making the tongue dry" (originally used of fruits, wines), metaphorically "austere, harsh," from PIE *saus- "dry" (cognates: Greek auos "dry," auein "to dry"). Use in English is figurative: "stern, severe, very simple." Related: Austerely.