: from an unused root apparently meaning to trickle, as myrrh; fragrant dropping; Zilpah, Leah's maid -- Zilpah.
Englishman's Concordance
Zilpah = “a trickling” 1) the Syrian given by Laban to Leah as a handmaid, a concubine of Jacob, mother of Asher and Gad Part of Speech: noun proper feminine A Related Word by BDB/Strong’s Number: from an unused root apparently mean to trickle, as myrrh
Brown-Driver-Briggs
זלף (√ of following; Thes compare Aramaic זְלַף Pa`el drop, drip; compare ; also Late Hebrew זִלּוּףsprinkling, dropping, pouring, a full bowl, etc.)
Genesis 29:24 HEB:לָ֔הּ אֶת־ זִלְפָּ֖ה שִׁפְחָת֑וֹ לְלֵאָ֥ה NAS: his maid Zilpah to his daughter KJV: Leah Zilpah his maid INT: gave Laban Zilpah his maid Leah
Genesis 30:9 HEB:וַתִּקַּח֙ אֶת־ זִלְפָּ֣ה שִׁפְחָתָ֔הּ וַתִּתֵּ֥ן NAS: her maid Zilpah and gave KJV: she took Zilpah her maid, INT: bearing took Zilpah her maid and gave
Genesis 35:26 HEB: וּבְנֵ֥י זִלְפָּ֛ה שִׁפְחַ֥ת לֵאָ֖ה NAS: and the sons of Zilpah, Leah's maid: KJV: And the sons of Zilpah, Leah's INT: and the sons of Zilpah maid Leah's
Genesis 37:2 HEB:וְאֶת־ בְּנֵ֥י זִלְפָּ֖ה נְשֵׁ֣י אָבִ֑יו NAS: and the sons of Zilpah, his father's KJV: and with the sons of Zilpah, his father's INT: for and the sons of Zilpah wives his father's
Genesis 46:18 HEB:אֵ֚לֶּה בְּנֵ֣י זִלְפָּ֔ה אֲשֶׁר־ נָתַ֥ן NAS: are the sons of Zilpah, whom KJV: These [are] the sons of Zilpah, whom Laban INT: These are the sons of Zilpah whom gave
; also Late Hebrew זִלּוּף sprinkling, 
dropping, pouring, 
a full bowl, etc.)