camshaft

noun

shaft to which a cam is fastened

Wiktionary

Pronunciation: /ˈkæmʃæft/

noun

Etymology: Etymology tree Proto-Indo-European *ǵembʰ- Proto-Indo-European *-os Proto-Indo-European *ǵómbʰos Proto-Germanic *kambaz Proto-West Germanic ᚲᚨᛒᚨ Proto-West Germanic *kamb Old Dutch *kamb Middle Dutch kamp Dutch kamder. English cam English shaft English camshaft From cam + shaft.

A shaft fitted with cams; especially one in a piston engine that activates the valves.