third person singular of go, Old English gaæs (Northumbrian), displacing alternative goeth (Old English gaeþ) except in archaic and liturgical use. Who goes there? as a sentry's challenge is from 1590s. Expression anything goes "there are no rules or limits" is from 1921; earlier everything goes (1879). That goes without saying (1878) translates French cela va sans dire.[goes etymology, goes origin, 英语词源]