Easton's Bible Dictionary (1897)
The last king of Egypt of the Ethiopian (the fifteenth) dynasty. ). 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.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
), king of Ethiopia and Upper Egypt. 2 Kgs 19:9; Isa 37:9. In legends he was one of the greatest conquerors of antiquity. His triumphs westward are said to have reached the Pillars of Hercules. But in the East he seems to have been twice badly beaten by the Assyrians and shut up in his own domains. Still, he was formidable enough to cause Sennacherib great uneasiness; for when the latter heard of his coming he demanded the immediate surrender of Jerusalem. 2 Kgs 19:9. Tirhakah reigned, probably, twenty-eight years. c. 695 to 667.
Hitchcock's Bible Names (1869)
inquirer; examiner; dull observer