From a primary but obsolete verb nupto (to veil as a bride; compare Latin "nupto," to marry); a young married woman (as veiled), including a betrothed girl; by implication, a son's wife -- bride, daughter in law.
1. a betrothed woman, a bride: John 3:29; Revelation 18:23; Revelation 21:2, 9; Revelation 22:17.
2. in the Greek writings from Homer down, a recently married woman, young wife; a young woman; hence, in Biblical and ecclesiastical Greek, like the Hebrew כַּלָּה (which signifies both a bride and a daughter-in-law (cf. Winers Grammar, 32)), a daughter-inlaw: Matthew 10:35; Luke 12:53. (Micah 7:6; Genesis 11:31; (Genesis 38:11); Ruth 1:6 (etc.); also Josephus, Antiquities 5, 9, 1.)