δικαιόσυνος
From LSJ
προγράψαντες οὖν τά τε θεωρήματα καὶ τὰ ἐπιτάγματα τὰ χρεῖαν ἔχοντα εἰς τὰς ἀποδείξιας αὐτῶν μετὰ ταῦτα γραψοῦμές τοι τὰ προκείμενα → having therefore written at the beginning the theorems and the postulates that are necessary for their proofs, we will then write out for you the propositions
English (LSJ)
ὁ,
A Guardian of justice, of Zeus, AJA1905.302 (Sinope), Com.Adesp.752, Eust.918.47: generally, just, Simp.in Cat.264.24.
German (Pape)
[Seite 627] ὁ, Ζεύς, Beschützer der Gerechtigkeit, B. A. 34; Schol. Il. 13, 29.
Greek (Liddell-Scott)
δῐκαιόσυνος: ὁ, ἐπίθ. τοῦ Διὸς ὡς φύλακος τῆς δικαιοσύνης, Α.Β.34, Εὐστ. 918.47.