perhaps denominative from H3394; (born at the) new moon; Jaroach, an Israelite; Jaroah.
Usages throughout the bible
1 Chronicles 5:14
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These are the children of Abihail the son of Huri, the son of Jaroah, H3386 the son of Gilead, the son of Michael, the son of Jeshishai, the son of Jahdo, the son of Buz;
