Tamar Palm tree. (1) Wife of Er and Onan; mother, by Judah, of Pharez and Zarah (Gen. 38:6; Ruth 4:12; 1Â Chr. 2:4; Matt. 1:3). (2) Daughter of David and Maachah (2Â Sam. 13:1). (3) Daughter of Absalom (2Â Sam. 14:27).