Where does “pilier” come from?

pilier (Old French) comes from Vulgar Latin pilare, from Latin pila, from Latin pīlus, from Latin pīlum, from Proto-Italic pistlom, from Proto-Indo-European pis-tlo-, from Proto-Indo-European peys- — to grind, to crush.

Ancestry of “pilier”, step by step

StepLanguageWordMeaning
1Vulgar Latinpilarea pillar
2Latinpilamortar; pillar; pier
3Latinpīlusa hair
4Latinpīluma pounder, pestle
5Proto-Italicpistlom—
6Proto-Indo-Europeanpis-tlo-—
7Proto-Indo-Europeanpeys-to grind, to crush

Words derived from “pilier”

Every word from Proto-Indo-European peys- →Every word from Proto-Indo-European pis-tlo- →Every word from Proto-Italic pistlom →