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

These dictionary topics are from
M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition,
published by Thomas Nelson, 1897. Public Domain, copy freely.