英语词源字典 - 在线词源网站

introduction (n.)[introduction 词源字典]: late 14c., "act of bringing into existence," from Old French introduccion and directly from Latin introductionem (nominative introductio) "a leading in," noun of action from past participle stem of introducere "to lead in, bring in, to introduce," from intro- "inward, to the inside" (see intro-) + ducere "to lead" (see duke (n.)). Meaning "initial instruction in a subject; an introductory statement" is mid-15c. The sense of "formal presentation of one person to another" is from 1711.[introduction etymology, introduction origin, 英语词源]
introductory (adj.): c. 1600, from Late Latin introductorius, from introduct-, past participle stem of introducere "to lead in, bring in" (see introduction). Also used in English from c. 1400 as a noun meaning "introductory treatise or textbook."
introit (n.): late 15c., from Old French introit (14c.), from Latin introitus "a going in," past participle of introire "to enter," from intro- (see intro-) + ire "to go" (see ion).
introject (v.): 1925, probably a back-formation from introjection. Related: Introjected; introjecting.
introjection (n.): 1866, from intro- + stem abstracted from projection. In philosophical and psychoanalytical use, from German introjektion.
intron: 1978, from intragenic + -on.
introspect (v.): 1680s, from Latin introspectus, past participle of introspicere "look at, look into" (see introspection). Related: Introspected; introspecting.
introspection (n.): 1670s, noun of action from past participle stem of Latin introspicere "to look into, look at," from intro- "inward" (see intro-) + specere "to look at" (see scope (n.1)).
introspective (adj.): 1820, from Latin introspect-, past participle stem of introspicere (see introspection) + -ive.
introversion (n.): 1650s, of thought or contemplation, from Modern Latin introversionem, noun of action from past participle stem of *introvertere (see introvert). Meaning "tendency to withdraw from the world" is from 1912.
introvert (v.): 1650s, from Latin intro- "inward" (see intro-) + vertere "to turn" (see versus). The noun, "introverted person" (opposed to extrovert) is 1918, from German psychology, introduced there by C.G. Jung (1875-1961).
introverted (adj.): 1781, "directed inward," past participle adjective from introvert. Psychological sense is from 1915.
intrude (v.): early 15c., back-formation from intrusion, or else from Latin intrudere "to thrust in" (see intrusion). Related: Intruded; intruding.
intruder (n.): 1530s, agent noun from intrude. Originally legal.
intrusion (n.): late 14c., from Old French intrusion (14c.), from Medieval Latin intrusionem (nominative intrusio) "a thrusting in," noun of action from past participle stem of Latin intrudere, from in- "in" (see in- (2)) + trudere "to thrust, push" (see extrusion).
intrusive (adj.): c. 1400, from Latin intrus-, past participle stem of intrudere (see intrusion) + -ive. Related: Intrusively; intrusiveness.
intubate (v.): 1610s, "to form into tubes," from in- (2) "in" + Latin tuba "tube" (see tuba) + -ate (2). Medical sense is from 1889. Related: Intubated; intubation.
intuit (v.): 1776, "to tutor," from Latin intuit-, past participle stem of intueri (see intuition). Meaning "to perceive directly without reasoning" is from 1840, in this sense perhaps a back-formation from intuition. Related: Intuited; intuiting.
intuition (n.): mid-15c., from Late Latin intuitionem (nominative intuitio) "a looking at, consideration," noun of action from past participle stem of Latin intueri "look at, consider," from in- "at, on" (see in- (2)) + tueri "to look at, watch over" (see tuition).
intuitive (adj.): 1640s, from Middle French intuitif or directly from Medieval Latin intuitivus, from intuit-, past participle stem of intueri "look at, consider" (see intuition). Related: Intuitively; intuitiveness.