κοὐκ

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

Source

French (Bailly abrégé)

crase poét. p. καὶ οὐκ.

Dutch (Woordenboekgrieks.nl)

κοὐ(κ) crasis voor καὶ οὐ(κ).

Russian (Dvoretsky)

κοὐκ: in crasi = καὶ οὐκ.

German (Pape)

καὶ οὐκ.