ἰΰ
From LSJ
Ubi idem et maximus et honestissimus amor est, aliquando praestat morte jungi, quam vita distrahi → Where indeed the greatest and most honourable love exists, it is much better to be joined by death, than separated by life.
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.