οἷσι (hoisi)

οἷσι is an Ancient Greek form of ὅς, meaning “who, which, that (relative); his own”. It is the dative plural masculine pronoun.

It can also be a form of ἑός, “his, her, its own”.

Found 251 times in the Ancient Greek texts on Socratos.

Where it is used

Apollonius Rhodius, Argonautica 1.355: δμῶες ἐμοὶ σταθμῶν σημάντορες, οἷσι μέμηλεν

Dionysius of Halicarnassus, Antiquitates Romanae 1.6.4: τοῖς δὲ ἀπʼ ἐκείνων τῶν ἰσοθέων ἀνδρῶν νῦν τε οἶσι καὶ ὕστερον ἐσομένοις μὴ τὸν ἥδιστόν τε καὶ ῥᾷστον αἱρεῖσθαι τῶν βίων, ἀλλὰ τὸν εὐγενέστατον καὶ φιλοτιμότατο …

Aeschylus, Seven Against Thebes 741: οῖσι συμμιγεῖς κακοῖς.

All forms of ὅς (declension 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.