ἦε

From LSJ

ἐὰν ᾖς φιλομαθής, ἔσει πολυμαθής → if you are studious, you will become learned

Source

German (Pape)

[Seite 1155] = ᾔει, s. εἶμι, .

English (Autenrieth)

see εἰμί.

Russian (Dvoretsky)

ἦε: и ἦεν эп. 3 л. sing. impf. к εἰμί.