Where does “arteil” come from?

arteil (Old French) comes from Latin articulus, from Latin artus, from Proto-Indo-European h₂értus, from Proto-Indo-European h₂er- — to fit, to fix, to put together.

Ancestry of “arteil”, step by step

Step	Language	Word	Meaning
1	Latin	articulus	A point connecting various parts of the body;...
2	Latin	artus	narrow, close, fitted, confined, dense; severe,...
3	Proto-Indo-European	h₂értus	that which is fit together; juncture, ordering
4	Proto-Indo-European	h₂er-	to fit, to fix, to put together

Words derived from “arteil”

artiglio
artiau
artigliare

Every word from Proto-Indo-European h₂er- →Every word from Proto-Indo-European h₂értus →Every word from Latin artus →