Where does “branchiatus” come from?

branchiatus (Latin) comes from Latin -ātus, from Proto-Italic -ātos, from Proto-Indo-European -éh₂tos.

branchiatus (Latin): having gills

Definitions

Step	Language	Word	Meaning
1	Latin	-ātus	—
2	Proto-Italic	-ātos	—
3	Proto-Indo-European	-éh₂tos	—

branchiatus — Etymology, Origin & Word History | Etymology Explorer