英语词源字典 - 在线词源网站

insinuation (n.)[insinuation 词源字典]: 1520s, from Latin insinuationem (nominative insinuatio) "entrance through a narrow way; an ingratiating oneself," noun of action from past participle stem of insinuare (see insinuate).[insinuation etymology, insinuation origin, 英语词源]
poodle (n.): 1808, from German Pudel, shortened form of Pudelhund "water dog," from Low German Pudel "puddle" (compare pudeln "to splash;" see puddle (n.)) + German Hund "hound" (see hound (n.)). Probably so called because the dog was used to hunt water fowl. Figurative sense of "lackey" (chiefly British) is attested from 1907. Poodle-faker, British army slang for "ingratiating male," is from 1902, likely euphemistic.
smarmy (adj.): "smooth and sleek" (1909); "ingratiating, unctuous," 1924, from smarm + -y (2). Related: Smarmily; smarminess.
unctuous (adj.): late 14c., "oily, having a greasy or soapy feeling when touched," from Old French unctueus, from Medieval Latin unctuosus "greasy," from Latin unctus "act of anointing," from past participle stem of unguere "to anoint" (see unguent).

Figurative sense of "blandly ingratiating" is first recorded 1742, perhaps in part with a literal sense, but in part a sarcastic usage from unction in the meaning "deep spiritual feeling" (1690s), such as comes from having been anointed in the rite of unction. Related: Unctuously; unctuousness.
smoodge: "Behave in an ingratiating manner", Early 20th century: probably an alteration of dialect smouch 'kiss, sidle up to'.