mid-14c., "not prepared," from un- (1) "not" + ready. In English history, applied to Anglo-Saxon King Ethelred II (d.1016), where it preserves the fuller original sense of O.E. ungeræd "ill-advised, rede-less, no-counsel" and plays on the king's
name (which lit. means "good-counsel"). The epithet is attested from c.1210.