Easton's Bible Dictionary (1897)
Drooping, Leah’s handmaid, and the mother of Gad and Asher (Gen. 30:9-13).
Smith's Bible Dictionary (1863)
(a trickling), a Syrian given by Laban to his daughter Leah as an attendant, (Genesis 29:24) and by Leah to Jacob as a concubine. She was the mother of Gad and Asher.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
ZIL'PAH (dropping), the handmaid of Leah, and the mother of Gad and Asher. Gen 30:9.
Hitchcock's Bible Names (1869)
distillation from the mouth