ὅστις (hostis): all forms
ὅστις means “whoever, whatever; who, which”. Below is its full declension in Ancient Greek.
Positive
| Masculine | Feminine | Neuter | |
|---|---|---|---|
| Nominative | ὅστις | ἥτις | ὅτι |
| Genitive | ὅτου | ἧστινος | ὅτου |
| Dative | ὅτῳ | ᾗτινι | ὁτῳοῦν |
| Accusative | ὅντινα | ἥντινα | ὅτι |
| Masculine | Feminine | Neuter | |
|---|---|---|---|
| Nominative | οἵτινες | αἵτινες | ἅτινα |
| Genitive | ὅτων | ὡντινωνοῦν | ὅτων |
| Dative | οἷστισι | αἱστισινοῦν | ὅτοις |
| Accusative | οὕστινας | ἁστινασοῦν | ἅτινα |
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.