Euphemism

Eu″phe‐mism (ū″fē̍‐mĭz'm), n. [Gr. � fr. � to use word of a good omen; εὐ̑ 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.