ETYM Old Fren. ambassée, embascée, Late Lat. ambasciata, from ambasciare for ambactiare to go on a mission, from Latin ambactus vassal, dependent, of Celtic or German origin; cf. W. amaeth husbandman, Goth. andbahts servant, German amt office, Old High Germ. ambaht. Related to Ambassador.
A building where ambassadors live or work.