Where does “fresta” come from?

fresta (Portuguese) comes from Old Portuguese fẽestra, from Latin fenestra, from Etruscan *𐌚𐌍𐌄𐌔𐌕𐌓𐌀.

fresta (Portuguese): chink, crack; a small hole or crack in a wall,...

Definitions

Step	Language	Word	Meaning
1	Old Portuguese	fẽestra	window
2	Latin	fenestra	a window, an opening for light; a breach; a...
3	Etruscan	*𐌚𐌍𐌄𐌔𐌕𐌓𐌀	—

fresta — Etymology, Origin & Word History | Etymology Explorer