the wife or widow of a duke 公爵夫人 ■a woman holding a rank equivalent to duke in her own right 女公爵 ■(Brit. informal)(especially among cockneys) an affectionate form of address used by a man to a girl or woman he knows well (英,非正式)姑娘,夫人(尤指伦敦东区男性对女子的昵称)
语源
late Middle English: via Old French from medieval Latin ducissa, from Latin dux, duc- (see duke)