Apparently a primitive word expressing pain exclamatorily; Oh! -- ah, alas.
H162. ahah
אֲהָהּ ( ) interjection alas! Judges 11:35; 2 Kings 3:10; 6:5, 15; with ל Joel 1:15 לַיּוֺם אֲהָהּ alas for the day! for etc. In the combination יֱהוִֺה אֲדֹנָי אֲהָהּ Joshua 7:7; Judges 6:22; Jeremiah 1:6; 4:10; 14:13; 32:17; Ezekiel 4:14; 9:8; 11:13; 21:5.