jamb n.

"college grounds," 1774, from Latin campus "flat land, field," from Proto-Italic *kampo- "field," a word of uncertain origin. De Vaan finds cognates in Greek kampē "a bending, bow, curvature," etc., if the original sense of campus was "depression, curve" (see jamb), and concludes the source in PIE *kamp- "could well be a European substratum word from agricultural terminology." First used in college sense at Princeton.

also enjambement, 1837, from French enjambement or from enjamb (c. 1600), from French enjamber "to stride over," from en- (see en- (1)) + jambe "leg" (see jamb).

"frolic, merrymaking," 1590s, earlier gambolde "a skipping, a leap or spring" (1510s), from French gambade (15c.), from Late Latin gamba "horse's hock or leg," from Greek kampē "a bending;" see jamb. The form was altered perhaps by confusion with the formerly common ending -aud, -ald (as in ribald).