Where does “litjfinger” come from?

litjfinger (Norwegian Nynorsk) comes from Norwegian Nynorsk finger, from Old Norse fingr, from Proto-Germanic fingraz, from Proto-Indo-European penkʷrós.

Ancestry of “litjfinger”, step by step

Step	Language	Word	Meaning
1	Norwegian Nynorsk	finger	a finger
2	Old Norse	fingr	finger
3	Proto-Germanic	fingraz	finger
4	Proto-Indo-European	penkʷrós	—

Every word from Proto-Indo-European penkʷrós →Every word from Proto-Germanic fingraz →Every word from Old Norse fingr →