Abbott-Smith Manual Greek Lexicon
κατ-ηχέω (G2727)
8 *† κατ-ηχέω , -ῶ , to resound . to teach by word of mouth , instruct , inform (v. Bl., Phil. Gosp. , 20, 31): Ga 6:6 ; c. acc. pers., I Co 14:19 ; pass. c. acc. rei, Lk 1:4 ( ICC , in l.), Ac 18:25 21:24 (cf. Lk 1:4 ), Ga 6:6 ; seq. ἐκ , c. gen. rei, Ro 2:18 ; περί , c. gen. pers., Ac 21:21 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain