Where does “toppo” come from?

toppo (Italian) comes from Vulgar Latin *toppus, from Frankish topp, from Proto-Germanic tuppaz, from Proto-Indo-European dumb- — tail, rod, staff, pole, penis; tail, rod, staff,...

toppo (Italian): stump; first-person singular present indicative...

Definitions

stump; first-person singular present indicative...

Ancestry of “toppo”, step by step

Step	Language	Word	Meaning
1	Vulgar Latin	*toppus	—
2	Frankish	topp	tuft; spinning top; summit, top
3	Proto-Germanic	tuppaz	tuft, plait; top, summit
4	Proto-Indo-European	dumb-	tail, rod, staff, pole, penis; tail, rod, staff,...

Every word from Proto-Indo-European dumb- →Every word from Proto-Germanic tuppaz →Every word from Frankish topp →