ἀποτραχύνω

English (LSJ)

pf.

   A ἀποτετράχυκα D.H.Comp.22:—make rough or hard: metaph., τὴν ἁρμογήν l.c.; but ἀ. τὴν ἀκοήν grate on the ear, Id.Dem.43:—Pass., to be or become rough or hard, Thphr.HP6.4.2.

German (Pape)

[Seite 332] rauh machen, verhärten, Theophr.; erbittern, ἀποτετράχυκε D. Hal. C. V. 22 p. 310; τὸ ἀποτραχυνόμενον, Strenge, Ernst, Longin.