caroline (adj.)

masc. proper name, from French Charles, from Medieval Latin Carolus, from Middle High German Karl, literally "man, husband" (see carl).

c. 1300, "bondsman; common man, man of low birth," from Old Norse karl "man" (as opposed to "woman"), "male, freeman," from Proto-Germanic *karlon- (source also of Dutch karel "a fellow," Old High German karl "a man, husband"). The same Proto-Germanic source produced Old English ceorl "man of low degree" (see churl) and the masc. proper name Carl and, via French and Latin, Charles.

The Mellere was a stout carle for the nones [Chaucer]

masc. proper name, from Medieval Latin Carolus, which is of Germanic origin, from the common noun meaning "man, husband" (see carl). As a fem. proper name, an abbreviation of Caroline. The masc. name never has been popular in U.S.; the fem. form was common after c. 1900 and was a top-10 name for U.S. girls born 1936-1950.