英语词源字典 - 在线词源网站

yuletide (n.)[yuletide 词源字典]: late 15c., from yule + tide.[yuletide etymology, yuletide origin, 英语词源]
yum (interj.): exclamation of pleasure, attested from 1878.
Yuma: native people of Arizona, also their language, of the Yuman family, the name probably is from O'odham (Piman) yu'mi and represents the name the Piman peoples applied to the Yuma people.
yummy: "delicious," 1899, from baby talk. Yum-yum as an exclamation of pleasure is recorded from 1878.
yup: 1906, variant of yes.
yuppie (n.): 1982, acronym from "young urban professional," ousting competition from yumpie (1984), from "young upward-mobile professional," and yap (1984), from "young aspiring professional." The word was felt as an insult by 1985.
yurt (n.): "house or hut of the natives of north and central Asia," 1784, ultimately from Russian yurta, from a Turkic language and originally meaning "home, dwelling."
YWCA (n.): also Y.W.C.A., 1874, initialism (acronym) of Young Women's Christian Association.
yeow: "Used to express pain or shock", Natural exclamation: first recorded in American English in the 1920s.
YouTube: "Upload a video of (someone or something) to the video-sharing website YouTube", Early 21st century: from YouTube, the proprietary name of the video-sharing website.
yomp: "(Of a soldier) march with heavy equipment over difficult terrain", 1980s: of unknown origin. The word came into prominence when used by the Royal Marines during the Falklands War of 1982.
Yardie: "(Among Jamaicans) a fellow Jamaican", 1980s: from Jamaican English yard 'house, home' (see yard² (sense 4 of the noun)).
yonks: "A very long time", 1960s: origin unknown; perhaps related to donkey's years (see donkey). More donkey from late 18th century:Before the late 18th century a donkey was an ass. At first the word donkey was used only in slang and dialect, and its origin is lost. Early references indicate that it rhymed with monkey, and this has prompted some to suggest that it comes from the colour dun (Old English) or from the man's name Duncan. The expression for donkey's years, ‘for a very long time’, is a pun referring to the length of a donkey's ears and playing on an old pronunciation of ears which was the same as that of years. The British expression yonks, with the same meaning, may derive from it. See also easel
ylang-ylang: "A sweet-scented essential oil obtained from the flowers of a tropical tree, used in perfumery and aromatherapy", Late 19th century: from Tagalog ilang-ilang.
yaar: "A friendly form of address", Via Hindi from Arabic yar 'friend'.
yashmak: "A veil concealing all of the face except the eyes, worn by some Muslim women in public", Mid 19th century: via Arabic from Turkish.
Yemenite: "another term for Yemeni (see Yemen)", From Arabic yamanī 'Yemeni' + -ite¹.
ylem: "(In the Big Bang theory) the primordial matter of the universe, originally conceived as composed of neutrons at high temperature and density", 1940s: from late Latin hylem (accusative) 'matter'.
yukata: "A light cotton kimono", Japanese, from yu 'hot water' (because originally worn indoors after a bath) + kata(bira) 'light kimono'.
yocto-: "(Used in units of measurement) denoting a factor of 10⁻²⁴", Adapted from octo-, on the pattern of combining forms such as peta- and exa-.