ˈegzəˌlärk, ˈeksəˌ-, -ˌzīˌ-, -ˌsīˌ- noun
( -s )
Etymology: exile (I) + -arch; translation of Aramaic rēsh gālūtā
: one of a line of Jewish civil and judicial rulers of the exiles in Babylon from about the third to the tenth centuries A.D. to whom Jews in all countries paid tribute