Where does “sultanatus” come from?

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

sultanatus (New Latin): sultanate

Definitions

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

sultanatus — Etymology, Origin & Word History | Etymology Explorer