ubeity (n.)youdaoicibaDictYouDict[ubeity 词源字典]
"whereness," 1670s, from Modern Latin ubietas, from Latin ubi "where" (see ubi).[ubeity etymology, ubeity origin, 英语词源]
ubiyoudaoicibaDictYouDict
"place, location, position," 1610s, common in English c. 1640-1740, from Latin ubi "where?, in which place, in what place," relative pronominal adverb of place, ultimately from PIE *kwo-bhi- (cognates: Sanskrit kuha, Old Church Slavonic kude "where"), locative case of pronominal base *kwo- (see who). Ubi sunt, literally "where are" (1914), in reference to lamentations for the mutability of things is from a phrase used in certain Medieval Latin Christian works.
ubiquitous (adj.)youdaoicibaDictYouDict
"being, existing, or turning up everywhere," 1800, from ubiquity + -ous. The earlier word was ubiquitary (c. 1600), from Modern Latin ubiquitarius, from ubique (see ubiquity). Related: Ubiquitously; ubiquitousness.
ubiquity (n.)youdaoicibaDictYouDict
"omnipresence," 1570s, from Modern Latin ubiquitas, from Latin ubique "everywhere," from ubi "where" (see ubi) + que "any, also, and, ever," as a suffix giving universal meaning to the word it is attached to, from PIE root *kwe "and." Originally a Lutheran theological position maintaining the omnipresence of Christ.
udder (n.)youdaoicibaDictYouDict
Old English udder "milk gland of a cow, goat, etc.," from Proto-Germanic *udr- (cognates: Old Frisian uder, Middle Dutch uyder, Dutch uijer, Old High German utar, German Euter, and, with unexplained change of consonant, Old Norse jugr), from PIE *eue-dh-r "udder" (cognates: Sanskrit udhar, Greek outhar, Latin uber "udder, breast").
UFO (n.)youdaoicibaDictYouDict
1953, abbreviation of Unidentified Flying Object, which is attested from 1950.
ufology (n.)youdaoicibaDictYouDict
1959, from UFO + -logy.
ug (v.)youdaoicibaDictYouDict
early 13c., "to inspire fear or loathing;" mid-14c. "to feel fear or loathing," from Old Norse ugga "to fear, dread" (see ugly). Related: Ugging.
UgandayoudaoicibaDictYouDict
from Swahili u "land, country" + Ganda, indigenous people name, of unknown origin. Related: Ugandan.
UgariticyoudaoicibaDictYouDict
1936, "pertaining to Ugarit," ancient city of northern Syria, and especially to the Semitic language first discovered there 1929 by Claude Schaeffer, from Ugarit, which probably is ultimately from Sumerian ugaru "field."
ughyoudaoicibaDictYouDict
1765, imitative of the sound of a cough; as an interjection of disgust, recorded from 1822.
uglification (n.)youdaoicibaDictYouDict
1820 (Shelley), noun of action from uglify.
uglify (v.)youdaoicibaDictYouDict
1570s; see ugly + -fy. Related: uglified; uglifying.
ugliness (n.)youdaoicibaDictYouDict
"repulsiveness of appearance," late 14c., from ugly + -ness.
ugly (adj.)youdaoicibaDictYouDict
mid-13c., uglike "frightful or horrible in appearance," from a Scandinavian source, such as Old Norse uggligr "dreadful, fearful," from uggr "fear, apprehension, dread" (perhaps related to agg "strife, hate") + -ligr "-like" (see -ly (1)). Meaning softened to "very unpleasant to look at" late 14c. Extended sense of "morally offensive" is attested from c. 1300; that of "ill-tempered" is from 1680s.

Among words for this concept, ugly is unusual in being formed from a root for "fear, dread." More common is a compound meaning "ill-shaped" (such as Greek dyseides, Latin deformis, Irish dochrud, Sanskrit ku-rupa). Another Germanic group has a root sense of "hate, sorrow" (see loath). Ugly duckling (1877) is from the story by Hans Christian Andersen, first translated from Danish to English 1846. Ugly American "U.S. citizen who behaves offensively abroad" is first recorded 1958 as a book title.
uhyoudaoicibaDictYouDict
inarticulate sound, attested from c. 1600; uh-huh, spoken affirmative (often ironic or non-committal) is recorded from 1904; negative uh-uh is attested from 1924.
UHFyoudaoicibaDictYouDict
1937, abbreviation of ultra-high frequency (1932) in reference to radio frequencies in the range of 300 to 3,000 megahertz.
uhlan (n.)youdaoicibaDictYouDict
type of cavalryman, 1753, from German Uhlan, from Polish ułan "a lancer," from Turkish oghlan "a youth." For sense evolution, compare infantry.
uilleannyoudaoicibaDictYouDict
in uilleann pipe, from Irish uilleann "elbow," from Old Irish uilenn, from PIE *ol-ena-, from root *el- (1) "elbow, forearm" (see ell (n.1)).
ukase (n.)youdaoicibaDictYouDict
"decree issued by a Russian emperor," 1729, from Russian ukaz "edict," back-formation from ukazat' "to show, decree, to order," from Old Church Slavonic ukazati, from u- "away," perhaps here an intensive prefix, from PIE *au- (2) "off, away" + kazati "to show, order," from Slavic *kaz- (related to the first element of Casimir), from PIE root *kwek- "to appear, show."