Where does “Fensterrahmen” come from?

Fensterrahmen (German) comes from German Rahmen, from German -en, from Middle High German -en, from Old High German -īn, from Proto-Germanic -īnaz, from Proto-Indo-European -iHnos, from Proto-Indo-European -no- — adjectival suffix.

Fensterrahmen (German): window frame

Definitions

window frame

Ancestry of “Fensterrahmen”, step by step

Fensterrahmen traces back through two separate lines of ancestry.

via German Rahmen

Step	Language	Word	Meaning
1	German	Rahmen	frame, scope
2	German	-en	A suffix of verbs in their infinitive form; A...
3	Middle High German	-en	—
4	Old High German	-īn	—
5	Proto-Germanic	-īnaz	-en
6	Proto-Indo-European	-iHnos	Creates adjectives of materials
7	Proto-Indo-European	-no-	adjectival suffix

via German Fenster

Step	Language	Word	Meaning
1	German	Fenster	window; time frame
2	Middle High German	venster	window
3	Old High German	fenstar	window
4	Proto-West Germanic	*fenestr	window
5	Latin	fenestra	a window, an opening for light; a breach; a...
6	Etruscan	*𐌚𐌍𐌄𐌔𐌕𐌓𐌀	—

Every word from Proto-Indo-European -no- →Every word from German -en →Every word from Proto-Germanic -īnaz →