(exalted? ) king of Ethiopia (Cush), the opponent of Sennacherib. (2 Kings 19:9; Isaiah 37:9) He may be identified with Tarkos or Tarakos, who was the third and last king of the twenty-fifth dynasty, which was of Ethiopians. His accession was probably about B.C. 695. Possibly Tirhakah ruled over Ethiopia before becoming king of Egypt.
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Smith, William, Dr. "Entry for 'Tir’hakah,'". "Smith's Bible Dictionary".