Where does “Bacchanalia” come from?

Bacchanalia (Latin) comes from Latin Bacchānal, from Latin Bacchus, from Ancient Greek Βάκχος — Bacchus.

Ancestry of “Bacchanalia”, step by step

Step	Language	Word	Meaning
1	Latin	Bacchānal	—
2	Latin	Bacchus	the god of wine
3	Ancient Greek	Βάκχος	Bacchus

Bacchanalia — Etymology, Origin & Word History | Etymology Explorer