a short, heavy, slightly curved sword with a single cutting edge, formerly used by sailors.
Also, cut·las.
Origin: 1585–95; earlier coutelace < Middle French coutelas, equivalent to coutel knife (French couteau) (< Latin cultellus;see cultellus) + -as augmentative suffix; cognate with Italian coltellaccio big knife; compare curtalax
1590s, from M.Fr. coutelas, probably from It. coltellaccio "large knife," from coltello "knife," from L. cultellus "small knife," dim. of culter "knife, plowshare."