Where does “cir” come from?

cir (Walloon) comes from Old French ciel, from Latin caelum, from Proto-Italic kailom, from Proto-Indo-European keh₂i-lom, from Proto-Indo-European keh₂i-.

cir (Walloon): sky

Definitions

  1. sky

Ancestry of “cir”, step by step

StepLanguageWordMeaning
1Old Frenchcielheaven
2Latincaelumheaven; sky; atmosphere, climate, weather
3Proto-Italickailomsky
4Proto-Indo-Europeankeh₂i-lomwhole
5Proto-Indo-Europeankeh₂i-—
Every word from Proto-Indo-European keh₂i- →Every word from Proto-Indo-European keh₂i-lom →Every word from Proto-Italic kailom →