Where does “Zeitfenster” come from?

Zeitfenster (German) comes from German Fenster, from Middle High German venster, from Old High German fenstar, from Proto-West Germanic *fenestr, from Latin fenestra, from Etruscan *𐌚𐌍𐌄𐌔𐌕𐌓𐌀.

Zeitfenster (German): time frame, time limit, slot; window of opportunity

Definitions

time frame, time limit, slot; window of opportunity

Ancestry of “Zeitfenster”, step by step

Zeitfenster traces back through two separate lines of ancestry.

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	—

via German Zeit

Step	Language	Word	Meaning
1	German	Zeit	time; time of day; period, era
2	Middle High German	zīt	time
3	Old High German	zīt	time
4	Proto-Indo-European	déh₂itis	interval, period of time
5	Proto-Indo-European	deh₂y-	to share, divide
6	Proto-Indo-European	deh₂-	to share, divide

Every word from Etruscan *𐌚𐌍𐌄𐌔𐌕𐌓𐌀 →Every word from Latin fenestra →Every word from Proto-West Germanic *fenestr →