By variation from yashar and 'el with directive enclitic; right towards God; Jesarelah, an Israelite -- Jesharelah.
see HEBREW yashar
see HEBREW 'el
H3480. Yesarelah
יְשַׂרְאֵ֫לָה proper name, masculine a son of Asaph 1 Chronicles 25:14 = אֲשַׂראֵ֫לָה (q. v.) 25:2 (etymology dubious).