Where does “stragrande” come from?

stragrande (Italian) comes from Italian stra-, from Latin extrā, from Latin exter, from Proto-Italic *eksteros.

stragrande (Italian): very great; overwhelming

Definitions

Step	Language	Word	Meaning
1	Italian	stra-	prefix used to indicate excessiveness,...
2	Latin	extrā	on the outside
3	Latin	exter	On the outside, outward, external, outer; Of...
4	Proto-Italic	*eksteros	—