Tirhakah

The last king of Egypt of the Ethiopian (the fifteenth) dynasty. He was the brother-in-law of So (q.v.). He probably ascended the "throne about B.C. 692, having been previously king of Ethiopia" "(2 Kings 19:9; Isa. 37:9), which with Egypt now formed one" "nation. He was a great warrior, and but little is known of him." "The Assyrian armies under Esarhaddon, and again under" "Assur-bani-pal, invaded Egypt and defeated Tirhakah, who" "afterwards retired into Ethiopia, where he died, after reigning" twenty-six years.

Definition of Tirhakah:
"inquirer; examiner; dull observer"