英语词源字典 - 在线词源网站

Iguanodon (n.)[Iguanodon 词源字典]: dinosaur name, 1825, hybrid from iguana + stem of Greek odonys "tooth" (on model of mastodon). So called because the fossil teeth and bones were thought to resemble those of the lizard.[Iguanodon etymology, Iguanodon origin, 英语词源]
ikebana (n.): 1901, from Japanese, from ikeru "to keep alive, arrange" + hana "flower."
il-: assimilated form of Latin prefix in- used with words beginning in l-; see in-.
ileo-: comb. form from ileum (q.v.).
ileum (n.): lowest part of the small intestine, 1680s, medical Latin, from ileum, singular created from classical Latin plural ilia "groin, flank," in classical Latin, "belly, the abdomen below the ribs," poetically, "entrails, guts." Sense restriction and form apparently from confusion with Greek eileos (see ileus). Earlier in English ylioun (late 14c.), from Medieval Latin ileon. Related: Ileitis.
ileus (n.): painful intestinal condition, 1706, from Latin ileus "severe colic," from Greek ileos "colic," from eilein "to turn, squeeze," from PIE *wel- (3) "to turn, roll" (see volvox).
ilex (n.): late 14c., from Latin ilex "holm-oak," perhaps from an extinct non-Indo-European language.
ilia: Latin plural of ilium (see ileum).
iliac (adj.): 1510s, "pertaining to the disease ileus or colic," from French iliaque or directly from Late Latin iliacus, from ilium "flank, side, entrails" (see ileum).
Iliad: from Latin Ilias (genitive Iliadis), from Greek Ilias poiesis "poem of Ilion" (Troy), literally "city of Ilius," the mythical founder.
ilium (n.): pelvic bone, 1706, Modern Latin, from Latin ilia (plural) "groin, flank" (see ileum).
ilk (adj.): Old English ilca "same" (n. and adj.), from Proto-Germanic *ij-lik, in which the first element is from the PIE demonstrative particle *i- (see yon) and the second is that in Old English -lic "form" (see like). Of similar formation are which and such. Phrase of that ilk implies coincidence of name and estate, as in Lundie of Lundie; applied usually to families, so by c. 1790 it began to be used with meaning "family," then broadening to "type, sort."
ill (adj.): c. 1200, "morally evil" (other 13c. senses were "malevolent, hurtful, unfortunate, difficult"), from Old Norse illr "ill, bad," of unknown origin. Not considered to be related to evil. Main modern sense of "sick, unhealthy, unwell" is first recorded mid-15c., probably related to Old Norse idiom "it is bad to me." Slang inverted sense of "very good, cool" is 1980s. As a noun, "something evil," from mid-13c.
ill (v.): early 13c., "to do evil to," from ill (adj.). Meaing "to speak disparagingly" is from 1520s. Related: Illed; illing.
ill (adv.): c. 1200, "wickedly; with hostility;" see ill (adj.). Meaning "not well, poorly" is from c. 1300. It generally has not shifted to the realm of physical sickess, as the adjective has done. Ill-fated recorded from 1710; ill-informed from 1824; ill-tempered from c. 1600; ill-starred from c. 1600. Generally contrasted with well, hence the useful, but now obsolete or obscure illcome (1570s), illfare (c. 1300), and illth.
illative (adj.): "inferential," 1610s, from Late Latin illativus, from Latin illatus "brought in," used as past participle of inferre. As a noun from 1590s.
illegal (adj.): 1620s, from French illégal or directly from Medieval Latin illegalis, from assimilated form of in- "not, opposite of" (see in- (1)) + Latin legalis (see legal). Term illegal immigrant first recorded 1892 in American English (illegal immigration is from 1887).
illegality (n.): 1630s, from illegal + -ity; or else from French illegalité (14c.).
illegally (adv.): 1620s, from illegal + -ly (2).
illegible (adj.): 1630s, from assimilated form of in- (1) "not, opposite of" + legible. Related: Illegibly; illegibility.