Where does “douiller” come from?

douiller (French) comes from French douille, from Middle French douille, from Old French doile, from Frankish duli, from Proto-Germanic dulją, from Proto-Indo-European dʰel- — an arch, vaulting, curve, curvature, cavity;...

douiller (French): to hurt

Definitions

to hurt

Ancestry of “douiller”, step by step

Step	Language	Word	Meaning
1	French	douille	socket; cartridge case; money
2	Middle French	douille	—
3	Old French	doile	—
4	Frankish	duli	pipe, tube, conduit; hollow tube, pipe; tube,...
5	Proto-Germanic	dulją	tube, pipe; nozzle, spout
6	Proto-Indo-European	dʰel-	an arch, vaulting, curve, curvature, cavity;...

Every word from Proto-Indo-European dʰel- →Every word from Proto-Germanic dulją →Every word from Frankish duli →