ἀπόρρευσις
From LSJ
ἀμήχανον δὲ παντὸς ἀνδρὸς ἐκμαθεῖν ψυχήν τε καὶ φρόνημα καὶ γνώμην, πρὶν ἂν ἀρχαῖς τε καὶ νόμοισιν ἐντριβὴς φανῇ → hard it is to learn the mind of any mortal or the heart, 'till he be tried in chief authority | it is impossible to know fully any man's character, will, or judgment, until he has been proved by the test of rule and law-giving
English (LSJ)
εως, ἡ,
A flowing from, ἔχειν τὰς ἀ. to be the source of streams, Plb.10.28.4; ἀέρος οὐ δεχομένου τὰς ἀ. Plu. 2.933c. II Astrol., = ἀπόρροια 3, Vett.Val.146.32; μανίας καὶ λύττης ἀ. Junc. ap. Stob.4.50.27. (ἀπόρρυσις (q.v.) shd. perh. be read in these passages.) III folly, = ἀφροσύνη, Aq.De.22.21, 1 Ki.25.25.