Where does “mangiâ” come from?

mangiâ (Ligurian) comes from Ligurian a, from Latin ad, from Proto-Italic ad, from Proto-Indo-European h₂éd — to, at.

Ancestry of “mangiâ”, step by step

Step	Language	Word	Meaning
1	Ligurian	a	the; in; at
2	Latin	ad	toward, to; up to; near, by, close by, at, to
3	Proto-Italic	ad	toward, to, on, up to, for
4	Proto-Indo-European	h₂éd	to, at

mangiâ — Etymology, Origin & Word History | Etymology Explorer