From the prepositional prefix and 'el; (belonging) to God; Lael an Israelite -- Lael.
see HEBREW 'el
H3815. Lael
לָאֵל proper name, masculine (belonging to God; compare Palmyrene לשמש: see NöWZKM, 1892, 314 GrayHeb. Names, 207) a Gershonite-Levite; Numbers 3:24, ᵐ5 Δαηλ, Δαουηλ.
לאם (√ of following; compare Arabic bind up, or together, III. reconcile, bring together (Thes BaNB§ 65 n. 2); > LagBN 180 who compare be low, ignoble, [plural] common ones, hence לְאֹם properly common, vulgar people).