Where does “tisun” come from?

tisun (Old French) comes from Latin titio, from Proto-Italic tītjō, from Proto-Indo-European teih₁- — to become hot, melt "or" to end.

Ancestry of “tisun”, step by step

StepLanguageWordMeaning
1Latintitiofirebrand
2Proto-Italictītjōheating
3Proto-Indo-Europeanteih₁-to become hot, melt "or" to end

Words derived from “tisun”

Every word from Proto-Indo-European teih₁- →Every word from Proto-Italic tītjō →Every word from Latin titio →