διάνηψις
From LSJ
ἔοικα γοῦν τούτου γε σμικρῷ τινι αὐτῷ τούτῳ σοφώτερος εἶναι, ὅτι ἃ μὴ οἶδα οὐδὲ οἴομαι εἰδέναι → I seem, then, in just this little thing to be wiser than this man at any rate, that what I do not know I do not think I know either
English (LSJ)
εως, ἡ,
A clearing off, τῶν χυμῶν Aret.CD2.2 (perh. f.l. for -νιψις).
Greek (Liddell-Scott)
διάνηψις: -εως, ἡ, ἀποκάθαρσις, ἐξάτμισις, τῶν χυμῶν Ἀρετ. Θερ. Χρον. Παθ. 2. 2.