[ad. Gr. ἐθναρχία, f. ἐθνάρχης: see prec.] a. The dignity or office of an ethnarch. b. The dominion of, or province ruled by, an ethnarch.
1612. Heywood, Apol. Actors, I. C ij b. They diuided their dominions and countryes into principalities, some into Prouinces, others into Ethnarchyes.
1643. Subject of Suprem., 68. Antipater deposeth him of his Ethnarchie.
1862. Merivale, Rom. Emp. (1865), V. xlvi. 417. Syria was still skirted by several tributary kingdoms or ethnarchies.