Te"trarch , a. Four. [Obs.]
Fuller.
Te"trarch (?), n. [L. tetrarches, Gr. &?;, &?;; te`tra- (see Tetra-) + &?; a ruler, &?; to
lead; rule: cf. F. tétrarque. See Arch, a.]
(Rom. Antiq.) A Roman governor of the fourth part of a province; hence, any subordinate or dependent prince; also, a petty king
or sovereign.