ὑπερεγώ

From LSJ

εἰ δὲ τύχῃ τις ἔρδων, μελίφρον' αἰτίαν ῥοαῖσι Μοισᾶν ἐνέβαλε → if someone is successful in his deeds, he casts a cause for sweet thoughts into the streams of the Muses

Source

Russian (Dvoretsky)

ὑπερεγώ: NT v. l. = ὑπὲρ ἐγώ (см. ὑπέρ I, 2).