stem[Anglais]

nom
1 : the tube of a tobacco pipe
2 : cylinder forming a long narrow part of something
3 : a turn made in skiing; the back of one ski is forced outward and the other ski is brought parallel to it
4 : a slender or elongated structure that supports a plant or fungus or a plant part or plant organ
5 : front part of a vessel or aircraft
verbe
1 : grow out of, have roots in, originate in