Where does “serpentoso” come from?

serpentoso (Italian) comes from Italian serpente, from Latin serpēns, from Latin serpō, from Proto-Indo-European serp- — to creep, crawl.

serpentoso (Italian): snakelike

Definitions

Step	Language	Word	Meaning
1	Italian	serpente	snake
2	Latin	serpēns	—
3	Latin	serpō	—
4	Proto-Indo-European	serp-	to creep, crawl

serpentoso — Etymology, Origin & Word History | Etymology Explorer