ἐναντιοῦσθαι (enantiousthai)
ἐναντιοῦσθαι is an Ancient Greek form of ἐν, meaning “in, among (+dat.)”. It is the present middle/passive infinitive.
It can also be a form of ἀντἰόομαι, “(garbled form)”. It is the present middle/passive infinitive.
It can also be a form of ἐνἀντιόομαι, “oppose, resist”.
Found 52 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 4.65.4: οὕτω τῇ [τε] παρούσῃ εὐτυχίᾳ χρώμενοι ἠξίουν σφίσι μηδὲν ἐναντιοῦσθαι, ἀλλὰ καὶ τὰ δυνατὰ ἐν ἴσῳ καὶ τὰ ἀπορώτερα μεγάλῃ τε ὁμοίως καὶ ἐνδεεστέρᾳ παρασκευῇ κατεργάζεσθαι. αἰτία δ’ ἦν ἡ παρὰ λόγον τῶν πλεόνων εὐπραγία αὐτοῖς ὑποτιθεῖσα ἰσχὺν τῆς ἐλπίδος.
Pausanias, Description of Greece 3.15.9: … μένῳ οἱ πρὸς Ἱπποκόωντα καὶ τοὺς παῖδας οὐδὲν ἐκ τῆς Ἥρας ἀπήντησεν ἐμπόδιον, ὥσπερ γε ἐπὶ τῶν ἄλλων ἐδόξαζεν ἐναντιοῦσθαί οἱ τὴν θεόν· αἶγας δὲ αὐτὸν θῦσαί φασιν ἱερείων ἀπορήσαντα ἀλλοίων.
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.