Where does “festa” come from?

festa (Maltese) comes from Italian festa, from Late Latin festa, from Latin fēsta, from Latin festum, from Latin fēstus, from Proto-Italic fēstos.

festa (Maltese): feast, celebration

Definitions

Step	Language	Word	Meaning
1	Italian	festa	feast
2	Late Latin	festa	party; feast; nominative/accusative/vocative...
3	Latin	fēsta	party, feast
4	Latin	festum	a holiday, festival; a banquet, feast
5	Latin	fēstus	Of or pertaining to holidays; festive, festal, joyful, merry
6	Proto-Italic	fēstos	—