Jerahmeel had also another wife, whose name was Atarah,.... Distinct from his wife before named; or "another woman", which is a phrase for an harlot or concubine, Judges 11:2 which she might be, as Kimchi observes; though the former seems best:
she was the mother of Onam; and perhaps was the only son she bore to Jerahmeel, of whose sons see 1 Chronicles 2:28.