chīlĭarchēs, ae, or chīlĭarchus, i, m., = χιλιάρχης or χιλίαρχος,
I a commander of 1000 soldiers , a chiliarch , Curt. 5. 2, 2. Also in gen., a head of 1000 persons , Cod. Th. 16, 10, 20, § 4.—
II Among the Persians, the highest officer of state next to the king , chancellor of state , Nep. Con. 3, 2.