Where does “Grande” come from?

Grande (German) comes from Spanish grande, from Old Spanish grande, from Latin grandis, from Proto-Italic *grandis.

Grande (German): grandee

Definitions

Step	Language	Word	Meaning
1	Spanish	grande	big, large; great; aged, old
2	Old Spanish	grande	great
3	Latin	grandis	full-grown, grown up; large, great, grand, lofty;...
4	Proto-Italic	*grandis	—

Grande — Etymology, Origin & Word History | Etymology Explorer