Where does “pitsapaikka” come from?

pitsapaikka (Finnish) comes from Finnish paikka, from Proto-Finno-Ugric *paikka, from Proto-Germanic spaikǭ, from Proto-Indo-European spēy- — to stretch; thrive; succeed.

Ancestry of “pitsapaikka”, step by step

pitsapaikka traces back through two separate lines of ancestry.

via Finnish paikka

Step	Language	Word	Meaning
1	Finnish	paikka	place, location, spot, site; area, region,...
2	Proto-Finno-Ugric	*paikka	—
3	Proto-Germanic	spaikǭ	spoke
4	Proto-Indo-European	spēy-	to stretch; thrive; succeed

via Finnish pitsa

Step	Language	Word	Meaning
1	Finnish	pitsa	Alternative form of pizza; pizza
2	Italian	pizza	pizza; reel; something very monotonous and...
3	Neapolitan	pizza	pizza
4	Byzantine Greek	πίτα	cake, pie; pie; Alternative form of πίττα , Attic...

Every word from Proto-Indo-European spēy- →Every word from Proto-Germanic spaikǭ →Every word from Proto-Finno-Ugric *paikka →