Euphemism

Eu"phe*mism (ū"fē*mĭz'm), n. [Gr. ? fr. ? to use word of a good omen; e'y^ well + ? to speak: cf. F. euphémisme. See Fame.] (Rhet.) A figure in which a harsh or indelicate word or expression is softened; a way of describing an offensive thing by an inoffensive expression; a mild name for something disagreeable.