σέθεν (sethen)
σέθεν is an Ancient Greek form of σύ, meaning “you (sg.), thou”. It is the genitive singular pronoun.
Found 275 times in the Ancient Greek texts on Socratos.
Where it is used
Apollonius Rhodius, Argonautica 1.283: ἐκ σέθεν, ἄλλα δὲ πάντα πάλαι θρεπτήρια πέσσω.
All forms of σύ (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.