Word Origin & History
guiltO.E. gylt "crime, sin, fault, fine," of unknown origin, though some suspect a connection to O.E. gieldan "to pay for, debt," but O.E.D. editors find this "inadmissible phonologically." The mistaken use for "sense of guilt" is first recorded 1690. Guilt by association first recorded 1941. Guilty is from
O.E. gyltig, from gylt.