δίδαξις

εως, ἡ
A. teaching, instruction, E. Hec. 601, Arist. Ph. 202a32, Phld. Rh. 2.249S. (pl., dub.), PRyl. 62.21 (iii A. D.).
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project