Where does “top” come from?

Top descends from Old English top, from Proto-Germanic tuppaz, from Proto-Indo-European dumb-, a root of uncertain meaning.

top (English): The highest or uppermost part of something; A...

Definitions

Step	Language	Word	Meaning
1	Middle English	top	The summit or top of something, especially a...
2	Old English	topp	—
3	Proto-West Germanic	*topp	—
4	Proto-Germanic	tuppaz	tuft, plait; top, summit
5	Proto-Indo-European	dumb-	tail, rod, staff, pole, penis; tail, rod, staff,...

top — Etymology, Origin & Word History | Etymology Explorer