Where does “tapp” come from?

tapp (Old Danish) comes from Old Norse tappi, from Proto-Germanic tappô, from Proto-Indo-European deh₂p-, from Proto-Indo-European deh₂- — to share, divide.

Ancestry of “tapp”, step by step

Step	Language	Word	Meaning
1	Old Norse	tappi	—
2	Proto-Germanic	tappô	plug; tap
3	Proto-Indo-European	deh₂p-	to sacrifice; to lose
4	Proto-Indo-European	deh₂-	to share, divide

Words derived from “tapp”

tap
tappe
istap
tapper
tapperhed

Every word from Proto-Indo-European deh₂- →Every word from Proto-Indo-European deh₂p- →Every word from Proto-Germanic tappô →