Where does “Bibulus” come from?

Bibulus (English) comes from Latin Bibulus, from Latin bibō, from Latin -ilis, from Proto-Italic -elis, from Proto-Indo-European -elis.

Ancestry of “Bibulus”, step by step

Step	Language	Word	Meaning
1	Latin	Bibulus	—
2	Latin	bibō	—
3	Latin	-ilis	-ile
4	Proto-Italic	-elis	—
5	Proto-Indo-European	-elis	—