Where does “ikkunankarmi” come from?

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

ikkunankarmi (Finnish): window frame

Definitions

window frame

Ancestry of “ikkunankarmi”, step by step

ikkunankarmi 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 karmi

Step	Language	Word	Meaning
1	Finnish	karmi	frame; Third-person singular indicative past form...
2	Swedish	karm	a frame
3	Old Norse	karmr	breast-work, parapet
4	Proto-Germanic	karmaz	—
5	Proto-Indo-European	ger-	to turn, bend, twist, wind; to tie, bind...

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