Tirshatha

"A word probably of Persian origin, meaning "severity," denoting" a high civil dignity. The Persian governor of Judea is so called "(Ezra 2:63; Neh. 7:65, 70). Nehemiah is called by this name in" "Neh. 8:9; 10:1, and the "governor" (pehah) in 5:18. Probably," "therefore, tirshatha=pehah=the modern pasha."

Definition of Tirshatha:
"a governor"