Chiliarch

Chiliarch is a military rank dating back to antiquity. Originally denoting the commander of a unit of about one thousand men (a chiliarchy) in the Macedonian army, it was subsequently used as a Greek translation of a Persian officer who functioned as a kind of vizier and of the Roman army's military tribunes. It has subsequently been used for other similar ranks and positions in other armed forces.

==Name== The English term chiliarch was borrowed from Latin , a transcription of Greek khilíarkhos () and khiliárkhēs (), both meaning "commander of a thousand". The name has also occasionally been written as chiliarcha, chiliarchus, or chiliarchos or calqued as thousandman.