Where does “patates pilées” come from?

patates pilées (French) comes from French piler, from Latin pilāre, 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.

patates pilées (French): mashed potatoes

Definitions

mashed potatoes

Ancestry of “patates pilées”, step by step

patates pilées traces back through two separate lines of ancestry.

via French piler

Step	Language	Word	Meaning
1	French	piler	to crush; to slam on the brakes of a vehicle,...
2	Latin	pilāre	—
3	Latin	pila	mortar; pillar; pier
4	Latin	pīlus	a hair
5	Latin	pīlum	a pounder, pestle
6	Proto-Italic	pistlom	—
7	Proto-Indo-European	pis-tlo-	—
8	Proto-Indo-European	peys-	to grind, to crush

via French patate

Step	Language	Word	Meaning
1	French	patate	Ellipsis of patate douce; sweet potato; potato
2	Spanish	patata	potato; piece of rubbish
3	Taíno	batata	sweet potato

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