英语词源字典 - 在线词源网站

conductor (n.)[conductor 词源字典]: 1520s, "one who leads or guides," from Middle French conductour (14c., Old French conduitor), from Latin conductor "one who hires, contractor," in Late Latin "a carrier," from conductus, past participle of conducere (see conduce).

Earlier in same sense was conduitour (early 15c., from Old French conduitor). Meaning "leader of an orchestra or chorus" is from 1784; meaning "one who has charge of passengers and collects fares on a railroad" is 1832, American English. Physics sense of "object or device that passes heat" is from 1745; of electricity from 1737.[conductor etymology, conductor origin, 英语词源]
inductor (n.): 1650s, from Latin inductor, agent noun from past participle stem of inducere (see induce). Electromagnetic sense begins in 1837.
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."
semiconductor (n.): 1838, "material whose electrical conductivity is between that of a conductor and that of an insulator," from semi- + conductor. Modern very specific sense is recorded from 1931.
superconductor (n.): 1913, translation of Dutch suprageleider, coined by Dutch physicist Heike Kamerlingh Onnes (1853-1926). See super- + conductor.
adductor: "A muscle whose contraction moves a limb or other part of the body towards the midline of the body or towards another part", Early 17th century: modern Latin, from Latin adduct- 'brought in', from the verb adducere (see adduce).
abductor: "A person who abducts another person", Early 17th century (as a term in anatomy): modern Latin (see abduct).