διδάσκειν
From LSJ
φθείρουσιν ἤθη χρήσθ' ὁμιλίαι κακαί → bad company ruins good habits
Greek > English (Woodhouse Verbs Reversed)
(see also διδάσκω): admonish, exhibit, inform, instruct, produce, teach, bring out a play, instruct in, make known, point out, produce on the stage