μεγαλαυχής
From LSJ
οὐ γὰρ ἂν τό γε πραχθὲν ἀγένητον θείη → since he cannot make what was done as though it had not come to pass
English (LSJ)
ές,
A = μεγάλαυχος, Orph.H.63.3, IG14.433 (Tauromenium), Man.3.34, Vett.Val.272.8.
German (Pape)
[Seite 105] ές, ruhmvoll; Orph. H. 62, 3; Man. 3, 34; vgl. μεγάλαυχος u. μεγαλαύχητος.
Greek (Liddell-Scott)
μεγᾰλαυχής: -ές, = μεγάλαυχος, Ὀρφ. Ὕμν. 62. 3. Ἑλλ. Ἐπιγράμμ. (προοίμ.) 824. 5.