Councilor
来自Big Physics
late Middle English: alteration of counsellor, by association with council.
etymonline
councilor (n.)
"a member of a council," early 15c., an alteration of counselor by assimilation to council.
The distinction of form and sense (councilor, one of a council, counselor, one who counsels) is modern; there is no OF. or L. form corresponding to councilor (L. as if *conciliarius) as distinguished from counselor (L. consiliarius). [Century Dictionary]
