(1) A warrior of the tribe of Manasseh, who deserted Saul and joined David's forces at Ziklag (1Ch 12:20,21)
(2) An officer of high rank, perhaps the commander-in-chief of Jehoshaphat's army (2Ch 17:14). Here the spelling in Hebrew is `adhnah.
The International Standard Bible Encyclopedia
Adnah
The International Standard Bible Encyclopedia, James Orr (1915). Public domain, from the CrossWire SWORD module.