ὀμόσαι (omosai)

ὀμόσαι is an Ancient Greek form of ὄμνυμι, meaning “swear, take an oath”. It is the aorist active infinitive.

Found 82 times in the Ancient Greek texts on Socratos.

Where it is used

Thucydides, History of the Peloponnesian War 5.30.2: … αίων οὔτε Ἀνακτόριον εἴ τέ τι ἄλλο ἐνόμιζον ἐλασσοῦσθαι, πρόσχημα δὲ ποιούμενοι τοὺς ἐπὶ Θρᾴκης μὴ προδώσειν· ὀμόσαι γὰρ αὐτοῖς ὅρκους ἰδίᾳ τε, ὅτε μετὰ Ποτειδεατῶν τὸ πρῶτον ἀφίσταντο, καὶ ἄλλους ὕστερον.

All forms of ὄμνυμι (conjugation table)

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.