Where does “ungustus” come from?

ungustus (Latin) comes from Proto-Italic ongostos, from Proto-Indo-European h₂ong-os-tos, from Proto-Indo-European h₂eng- — curve, bend.

ungustus (Latin): A curved stick

Definitions

Step	Language	Word	Meaning
1	Proto-Italic	ongostos	—
2	Proto-Indo-European	h₂ong-os-tos	—
3	Proto-Indo-European	h₂eng-	curve, bend

ungustus — Etymology, Origin & Word History | Etymology Explorer