archōn, ōntis, m., = ἄρχων (a ruler),
the highest magistrate at Athens after the abrogation of royal authority , an archon , * Cic. Fat. 9, 19; cf. Vell. 1, 2 and 8.
archōn ontis, m , ἄρχων, the highest magistrate of Athens. ...
An Elementary Latin Dictionary
·noun One of the chief magistrates in ancient Athens, especially, by preeminence, the first of the n...
Webster's Dictionary of the English Language