σπείσασθαι (speisasthai)
σπείσασθαι is an Ancient Greek form of σπένδω, meaning “pour a libation, make a treaty”. It is the aorist middle infinitive.
Found 26 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 2.73.1: … ὅτι βούλονται ἃ προκαλεῖται Ἀθηναίοις κοινῶσαι πρῶτον, καὶ ἢν πείθωσιν αὐτούς, ποιεῖν ταῦτα· μέχρι δὲ τούτου σπείσασθαι σφίσιν ἐκέλευον καὶ τὴν γῆν μὴ δῃοῦν. ὁ δὲ ἡμέρας τε ἐσπείσατο ἐν αἷς εἰκὸς ἦν κομισθῆναι, καὶ τὴν γῆν οὐκ ἔτ …
Arrian, Ἀλεξάνδρου Ἀνάβασις 3.23.8: τοῖς πρέσβεσι δὲ τῶν Ἑλλήνων δεομένοις σπείσασθαί σφισιν ὑπὲρ τοῦ παντὸς ξενικοῦ ἀπεκρίνατο ὁμολογίαν μὲν οὐκ ἂν ποιήσασθαι πρὸς αὐτοὺς οὐδεμίαν· ἀδικεῖν γὰρ μ …
All forms of σπένδω (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.