ἀτρέκεια
From LSJ
μήτε δίκην δικάσῃς πρίν ἀμφοῖν μῦθον ἀκούσῃς → do not give your judgement until you have heard a speech on both sides
English (LSJ)
ἡ, Ion. ἀτρεκ-είη, also ἀτρεκίη Man.3.229: (ἀτρεκής):—
A precise truth, certainty, Pi.Fr.213.4; τῶν ἡμεῖς ἀτρεκείην ἴδμεν Hdt.4.152, cf. 6.1; μαθεῖν . . τὴν ἀ. ὅτι οὐκ αἱρέει learnt for certain that he is unable to take it, ib.82, cf. IG9(1).880 (Corc.): in pl., τὰς -ας τὰς λεγομένας Hp.Prorrh.2.3. II Ἀτρέκεια personified, Strict Justice, Pi. O.10(11).13, E.Fr.91.
German (Pape)
[Seite 388] ἡ, ion. -ηΐη u. -ΐη, Zuderlässigkeit, ausgemachte Wahrheit, Her. τῆς ἀποστάσιος 4, 152. 6, 1, der wahre Hergang u. Zusammenhang; auch Arr. An. 6, 25, 1. Bei Pind. Ol. 11, 13 personificirt: Gerechtigkeit.