οὐκ (ouk)
οὐκ is an Ancient Greek form of οὐ, meaning “not”. It is the adverb.
Found 31,619 times in the Ancient Greek texts on Socratos.
Where it is used
Apollonius Rhodius, Argonautica 1.14: ῥέζε θεοῖς, Ἥρης δὲ Πελασγίδος οὐκ ἀλέγιζεν.
Thucydides, History of the Peloponnesian War 3.66.3: … σιν, ἢν τὰ ἐν τοῖς ἀγροῖς ὑμῖν μὴ ἀδικῶμεν, ὅμως φατὲ ἡμᾶς παρανομῆσαι καὶ αὐτοὶ ἀξιοῦτε μὴ ἀντιδοῦναι δίκην. οὔκ, ἤν γε οὗτοι τὰ ὀρθὰ γιγνώσκωσιν· πάντων δὲ αὐτῶν ἕνεκα κολασθήσεσθε.
Diogenes Laertius, Vitae philosophorum 5.1.7: … ς· τοῖον ἐπὶ φρένα βάλλεις κάρτος ἀθάνατον χρυσοῦ τε κρεῖσσον καὶ γονέων μαλακαυγήτοιό θʼ ὕπνου. σεῦ δʼ ἕνεχʼ οὑκ Διὸς Ἡρακλέης Λήδας τε κοῦροι πόλλʼ ἀνέτλασαν ἔργοις σὰν ἀγρεύοντες δύναμιν.
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Liddell-Scott-Jones, A Greek-English Lexicon (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.