οἷο
From LSJ
ἀλλ' οὐκ οἰωνοῖσιν ἐρύσσατο κῆρα μέλαιναν → by no augury could he ward off black death
English (LSJ)
Ep. for οὗ, gen. of Possess. Pron. ὅς, ἥ, ὅν
A his, her (q. v.) : οἷόπερ, Ep. for οὗπερ, A.R.1.1325.
Greek (Liddell-Scott)
οἷο: Ἐπικ. ἀντὶ οὗ, γεν. τῆς κτητ. ἀντωνυμ. ὅς, ἥ, ὅν, Ὅμ.˙ ἀλλ’ οὐδέποτε ὡς γενικ. τῆς προσωπ. ἀντωνυμ., ἥτις ἐν τῇ Ἰων. διαλέκτῳ εἶναι ἀπανταχοῦ εἷο: - οἷόπερ, Ἰων. ἀντὶ οὗπερ.