A variation of 'Ownan; strong; Onam, the name of an Edomite and of an Israelite -- Onam.
see HEBREW 'Ownan
H208. Onam
אוֺנָם proper name, masculine (vigorous).
1 chief of Horites Genesis 36:23; 1 Chronicles 1:40.
2 chief of tribe of Judah 1 Chronicles 2:26, 28.