αὐτήκοος

A. one who has himself heard, ear-witness, αὐ. τινος γενέσθαι Th. 1.133, Pl. Lg. 658c.

II. hearing oneself, i.e. a law unto oneself, Ph. 2.2, al., Suid.; so, self-acquired, ἀρετή, ἐπιστήμη, Ph. 1.371,354.