uncouth Look up uncouth at Dictionary.com
O.E. uncuš "unknown, uncertain, unfamiliar," from un- (1) "not" + cuš "known, well-known," pp. of cunnan "to know" (see can (v.)). Meaning "strange, crude, clumsy" is first recorded 1513. The compound (and the thing it describes) widespread in IE languages, cf. L. ignorantem,, O.N. ukušr, Goth. unkunžs, Skt. ajnatah, Armenian ancanaut', Gk. agnotos, O.Ir. ingnad "unknown."