Where does “fruscio” come from?

fruscio (Italian) comes from Italian frusciare, from Vulgar Latin frustio, from Latin frustum, from Proto-Italic frustom, from Proto-Indo-European bʰrus-tós, from Proto-Indo-European bʰrews- — to break.

fruscio (Italian): rustling (sound)

Definitions

rustling (sound)

Ancestry of “fruscio”, step by step

Step	Language	Word	Meaning
1	Italian	frusciare	to rustle
2	Vulgar Latin	frustio	—
3	Latin	frustum	a piece, bit; crumb, morsel, scrap of food
4	Proto-Italic	frustom	—
5	Proto-Indo-European	bʰrus-tós	—
6	Proto-Indo-European	bʰrews-	to break

Every word from Proto-Indo-European bʰrews- →Every word from Proto-Indo-European bʰrus-tós →Every word from Proto-Italic frustom →