Where does “veine” come from?

veine (Old French) comes from Latin venia, from Proto-Indo-European wn̥h₁yeh₂, from Proto-Indo-European wenh₁- — to love.

veine (Old French): vein

Definitions

Step	Language	Word	Meaning
1	Latin	venia	indulgence, kindness; mercy, grace, favour;...
2	Proto-Indo-European	wn̥h₁yeh₂	—
3	Proto-Indo-European	wenh₁-	to love

veine — Etymology, Origin & Word History | Etymology Explorer