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inducement (n.)[inducement 词源字典]: 1590s, "that which induces," from induce + -ment.[inducement etymology, inducement origin, 英语词源]
inducive (adj.): 1610s, from induce + -ive.
induct (v.): late 14c., from Latin inductus, past participle of inducere "to lead" (see induce). Originally of church offices; sense of "bring into military service" is 1934 in American English. Related: Inducted; inducting.
inductance (n.): 1886, from induct + -ance.
inductee (n.): 1941, American English, from induct + -ee.
induction (n.): late 14c., "advancement toward the grace of God;" also (c. 1400) "formal installation of a clergyman," from Old French induction (14c.) or directly from Latin inductionem (nominative inductio) "a leading in, introduction," noun of action from past participle stem of inducere "to lead" (see induce).

As a term in logic (early 15c.) it is from Cicero's use of inductio to translate Greek epagoge "leading to" in Aristotle. Induction starts with known instances and arrives at generalizations; deduction starts from the general principle and arrives at some individual fact. As a term of science, c. 1800; military service sense is from 1934, American English.
inductive (adj.): early 15c., from Old French inductif or directly from Late Latin inductivus, from induct-, past participle stem of inducere (see induce). As a term in logic, from 1764.
inductor (n.): 1650s, from Latin inductor, agent noun from past participle stem of inducere (see induce). Electromagnetic sense begins in 1837.
indulge (v.): 1630s, "to grant as a favor;" 1650s, of both persons and desires, "to treat with unearned favor;" a back-formation from indulgence, or else from Latin indulgere "to be complaisant." Related: Indulged; indulging.
indulgence (n.): mid-14c., "freeing from temporal punishment for sin," from Old French indulgence or directly from Latin indulgentia "complaisance, fondness, remission," from indulgentem (nominative indulgens) "indulgent, kind, tender, fond," present participle of indulgere "be kind, yield," of unknown origin; perhaps from in- "in" + derivative of PIE root *dlegh- "to engage oneself."

Sense of "gratification of another's desire or humor" is attested from late 14c. That of "yielding to one's inclinations" (technically self-indulgence) is from 1640s. In British history, Indulgence also refers to grants of certain liberties to Nonconformists under Charles II and James II, as special favors rather than legal rights; specifically the Declarations of Indulgence of 1672, 1687, and 1688 in England and 1669, 1672, and 1687 in Scotland.
indulgent (adj.): c. 1500, from Latin indulgentem (nominative indulgens), present participle of indulgere (see indulgence). Related: Indulgently.
indurate (v.): 1530s, from Latin induratus, past participle of indurare "to make hard, harden" (see endure). Related: Indurated.
induration (n.): late 14c., from Old French induracion "hardness, obstinacy" (14c.) or directly from Medieval Latin indurationem (nominative induratio) "hardness (especially of the heart)," noun of action from indurare (see endure).
Indus: river in Asia, from Sanskrit sindhu "river." The southern constellation, created 1603 by Bayer, represents "an Indian," not the river.
industrial (adj.): 1774, from French industriel, from Medieval Latin industrialis, from Latin industria (see industry). Earlier the word had been used in English in a sense "resulting from labor" (1580s); the modern use is considered a reborrowing. Meaning "suitable for industrial use" is from 1904. As a style of dance music, attested from 1988. Industrial revolution was in use by 1840 to refer to recent developments and changes in England and elsewhere.
industrialisation (n.): chiefly British English spelling of industrialization (q.v.); for spelling, see -ize.
industrialism (n.): 1831, from industrial + -ism. Compare French industrialisme (Saint-Simon, 1823).
industrialist (n.): 1846, from industrial + -ist. Perhaps modeled on French industrialiste (Saint-Simon, 1823). Earlier "one who makes a living by productive industry" (1837).
industrialization (n.): 1883, from industrialize + -ation.
industrialize (v.): 1852, from industrial + -ize, or else from French industrialiser (1842), from Medieval Latin industrialis. Related: Industrialized; industrializing.