Where does “ikkunapaikka” come from?

ikkunapaikka (Finnish) comes from Finnish ikkuna, from Finnish akkuna, from Proto-Finnic *akkuna, from Old East Slavic окъно, from Proto-Slavic okъnò — window.

ikkunapaikka (Finnish): window seat

Definitions

window seat

Ancestry of “ikkunapaikka”, step by step

ikkunapaikka traces back through two separate lines of ancestry.

via Finnish ikkuna

Step	Language	Word	Meaning
1	Finnish	ikkuna	window; sash
2	Finnish	akkuna	Alternative form of ikkuna
3	Proto-Finnic	*akkuna	window
4	Old East Slavic	окъно	window
5	Proto-Slavic	okъnò	window

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

Every word from Proto-Slavic okъnò →Every word from Old East Slavic окъно →Every word from Proto-Finnic *akkuna →