Where does “Hellys” come from?

Hellys (Cornish) comes from Proto-Finnic -hen, from Proto-Finnic -sen — Illative case ending.

Ancestry of “Hellys”, step by step

StepLanguageWordMeaning
1Proto-Finnic-hen—
2Proto-Finnic-senIllative case ending

Words derived from “Hellys”

Every word from Proto-Finnic -sen →Every word from Proto-Finnic -hen →