- bitter, rankling resentment or ill will; hatred; malice.
- malicious resentfulness or hostility; spite
chiefly British English spelling of rancor; for ending see -or. Related: Rancourous.
c.1200, from Old French rancor “bitterness, resentment; grief, affliction,” from Late Latin rancorem (nominative rancor) “rancidness, a stinking smell” (Palladius); “grudge, bitterness” (Hieronymus and in Late Latin), from Latin rancere “to stink” (see rancid).