Verses with the word onam in the Old Testament (4 verses):

Genesis 36:23
And the children of Shobal were these; Alvan, and Manahath, and Ebal, Shepho, and Onam.

1 Chronicles 1:40
The sons of Shobal; Alian, and Manahath, and Ebal, Shephi, and Onam. and the sons of Zibeon; Aiah, and Anah.

1 Chronicles 2:26
Jerahmeel had also another wife, whose name was Atarah; she was the mother of Onam.

1 Chronicles 2:28
And the sons of Onam were, Shammai, and Jada. And the sons of Shammai; Nadab and Abishur.