εὗ
From LSJ
εἰ μὴ ἦλθον καὶ ἐλάλησα αὐτοῖς, ἁμαρτίαν οὐκ εἶχον → if I had not come and spoken to them, they would not be guilty of sin
English (LSJ)
enclit. εὑ, Ion. and Ep. for οὗ (οὑ), gen. of reflex. Pron. of 3rd pers., Il.20.464; for αὑτοῦ, Hdt.3.135. II for αὐτοῦ, Il.14.427, 24.293. III apptly. for ἑῷ, Trans.Am.Phil.Ass.57.202 (Laodicea Combusta).