Where does “Bottini” come from?

Bottini (English) comes from Italian Bottini, from Italian Ambrogio, from Latin ambrosius, from Ancient Greek ἀμβρόσιος, from Ancient Greek ἄμβροτος, from Proto-Indo-European n̥mr̥tós, from Proto-Indo-European n̥-, from Proto-Indo-European ne — not.

Ancestry of “Bottini”, step by step

Step	Language	Word	Meaning
1	Italian	Bottini	—
2	Italian	Ambrogio	Ambrose
3	Latin	ambrosius	Ambrosial, divine, immortal
4	Ancient Greek	ἀμβρόσιος	immortal, divine
5	Ancient Greek	ἄμβροτος	immortal, divine; belonging to the gods
6	Proto-Indo-European	n̥mr̥tós	immortal
7	Proto-Indo-European	n̥-	not, un-
8	Proto-Indo-European	ne	not

Every word from Proto-Indo-European ne →Every word from Proto-Indo-European n̥- →Every word from Proto-Indo-European n̥mr̥tós →