Where does “Dioguardi” come from?

Dioguardi (English) comes from Italian Dioguardi, from Italian Dio, from Latin Deus, from Latin dẹ̄vos, from Old Latin deivos, from Proto-Italic deiwos, from Proto-Indo-European deywós, from Proto-Indo-European dyew- — to be bright; sky, heaven.

Ancestry of “Dioguardi”, step by step

Step	Language	Word	Meaning
1	Italian	Dioguardi	—
2	Italian	Dio	God
3	Latin	Deus	God
4	Latin	dẹ̄vos	—
5	Old Latin	deivos	god, deity
6	Proto-Italic	deiwos	god, deity
7	Proto-Indo-European	deywós	god
8	Proto-Indo-European	dyew-	to be bright; sky, heaven

Every word from Proto-Indo-European dyew- →