χἠ (che)
χἠ is an Ancient Greek form of ὁ, meaning “the; (Hom.) he, she, it; this, that”. It is the nominative singular feminine article.
Found 36 times in the Ancient Greek texts on Socratos.
Where it is used
Euripides, Alcestis 290: καίτοι σ’ ὁ φύσας χἠ τεκοῦσα προύδοσαν,
Aristophanes, Wasps 1121: ὅστις ἂν μὴ ʼχῃ τὸ κέντρον, μὴ φέρειν τριώβολον.
Euclid, Elementa 12.prop.13: … δρος τοῦ ΗΒ κυλίνδρου. διὰ τὰ αὐτὰ δὴ καὶ ὁσαπλασίων ἐστὶν ὁ ΜΚ ἄξων τοῦ ΚΖ ἄξονος, τοσαυταπλασίων ἐστὶ καὶ ὁ ΧΗ κύλινδρος τοῦ ΗΔ κυλίνδρου. καὶ εἰ μὲν ἴσος ἐστὶν ὁ ΚΛ ἄξων τῷ ΚΜ ἄξονι, ἴσος ἔσται καὶ ὁ ΠΗ κύλινδρος τῷ ΗΧ …
All forms of ὁ (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.