Where does “ponnekkuus” come from?

ponnekkuus (Finnish) comes from Finnish ponnekas, from Finnish kas, from Finnish katso!, from Finnish katsoa, from Proto-Finnic kaccodak, from Proto-Germanic gātijaną.

Ancestry of “ponnekkuus”, step by step

Step	Language	Word	Meaning
1	Finnish	ponnekas	Alternative form of ponteva
2	Finnish	kas	look!, oh!, my!, behold!; look
3	Finnish	katso!	look!
4	Finnish	katsoa	to look, have a look, take a look; to watch; to...
5	Proto-Finnic	kaccodak	to look
6	Proto-Germanic	gātijaną	—

Every word from Proto-Germanic gātijaną →Every word from Proto-Finnic kaccodak →Every word from Finnish katsoa →