Where does “στης” come from?

στης (Greek) comes from Ancient Greek εἰς, from Proto-Hellenic ens, from Proto-Indo-European h₁én — in.

Ancestry of “στης”, step by step

στης traces back through two separate lines of ancestry.

via Ancient Greek εἰς

StepLanguageWordMeaning
1Ancient Greekεἰςinto
2Proto-Hellenicens
3Proto-Indo-Europeanh₁énin

via Ancient Greek τῆς

StepLanguageWordMeaning
1Ancient Greekτῆςgenitive singular feminine of ὁ
Every word from Proto-Indo-European h₁énEvery word from Proto-Hellenic ensEvery word from Ancient Greek εἰς
στης — Etymology, Origin & Word History | Etymology Explorer