διαστόμωσις
From LSJ
τὸ κακὸν δοκεῖν ποτ' ἐσθλὸν τῷδ' ἔμμεν' ὅτῳ φρένας θεὸς ἄγει πρὸς ἄταν → evil appears as good to him whose mind the god is leading to destruction (Sophocles, Antigone 622f.)
English (LSJ)
εως, ἡ,
A expansion, Alex.Aphr.Pr.1.93.
Greek (Liddell-Scott)
διαστόμωσις: -εως, ἡ, διάνοιξις, Ἀλ. Ἀφροδ. Προβλ. 1.