politic (adj.)youdaoicibaDictYouDict[politic 词源字典]
early 15c., "pertaining to public affairs," from Middle French politique "political" (14c.) and directly from Latin politicus "of citizens or the state, civil, civic," from Greek politikos "of citizens, pertaining to the state and its administration; pertaining to public life," from polites "citizen," from polis "city" (see polis). Replaced in most adjectival senses by political. From mid-15c. as "prudent, judicious."[politic etymology, politic origin, 英语词源]
politic (v.)youdaoicibaDictYouDict
also politick, "to engage in political activity," 1917, a back-formation from politics. Related: Politicked; politicking (for the -k- see picnic).