Word Origin & History
nephewc.1300, from O.Fr. neveu (O.N.Fr. nevu) "grandson, descendant," from L. nepotem (nom. nepos) "sister's son, grandson, descendant," in post-Augustan L., "nephew," from PIE *nepot- "grandchild," and in a general sense, "male descendant other than son" (cf. Skt. napat "grandson, descendant," O.Pers. napat-
"grandson," O.Lith. nepuotis "grandson," O.E. nefa, Ger. Neffe "nephew," O.Ir. nia, gen. niath "son of a sister"). Used in Eng. in all the classical senses until meaning narrowed in 17c., and also as a euphemism for "the illegitimate son of an ecclesiastic" (1587).