Origin: oe. Gibet, f. Gibet, in OF. Also club, fr. LL. Gibetum;; cf. OF. Gibe sort of sickle or hook, It. Giubbetto gibbet, and giubbetta, dim. Of giubba mane, also, an under waistcoat, doublet, Prov. It. Gibba (cf. Jupon); so that it perhaps originally signified a halter, a rope round the neck of malefactors; or it is, perhaps, derived fr. L. Gibbus hunched, humped, E. Gibbous; or cf. E. Jib a sail.