Where does “tronçonneuse” come from?

tronçonneuse (French) comes from French tronçonner, from French tronçon, from Old French trons, from Latin trunceus, from Latin truncus, from Proto-Indo-European twerḱ- — to carve, cut off, trim.

tronçonneuse (French): chainsaw

Definitions

chainsaw

Ancestry of “tronçonneuse”, step by step

Step	Language	Word	Meaning
1	French	tronçonner	to slice, to slice up
2	French	tronçon	slice, section
3	Old French	trons	—
4	Latin	trunceus	—
5	Latin	truncus	lopped, docked; maimed, mangled, mutilated; A...
6	Proto-Indo-European	twerḱ-	to carve, cut off, trim

Every word from Proto-Indo-European twerḱ- →Every word from Latin truncus →Every word from Latin trunceus →