Where does “gâter” come from?

gâter (Middle French) comes from Old French guaster, from Latin vastō, from Latin vastus, from Proto-Celtic wāstos, from Proto-Indo-European h₁weh₂- — to leave, abandon, give out.

Ancestry of “gâter”, step by step

gâter traces back through two separate lines of ancestry.

via Old French guaster

StepLanguageWordMeaning
1Old FrenchguasterAlternative form of gaster
2Latinvastōto devastate, destroy, ravage, lay waste
3LatinvastusEmpty, unoccupied, i.e. waste, desert; Desolate,...
4Proto-Celticwāstosempty
5Proto-Indo-Europeanh₁weh₂-to leave, abandon, give out

via Old French gaster

StepLanguageWordMeaning
1Old Frenchgasterto waste; to destroy
Every word from Proto-Indo-European h₁weh₂-Every word from Proto-Celtic wāstosEvery word from Latin vastus