ἰΰ
From LSJ
ὑμῖν ἔξεστι εὐδαίμοσι γενέσθαι → to you it is permitted to be joyful, it is permitted to be happy, it is permitted to be fortunate, vobis licet esse beatis
English (LSJ)
exclamation of surprise, Hdn.Gr.1.506.
Greek (Liddell-Scott)
ἰΰ: θαυμαστικὸν ἐπιφώνημα, Θεογνώστ. Κανόνες 161, Ἰω. Ἀλεξ. τονικὰ παραγγέλματα 37.
German (Pape)
Interjektion der Verwunderung, Gramm.