Where does “urtica” come from?

urtica (Latin) comes from Latin -āria, from Latin -ārius, from Proto-Italic *-āzios.

Ancestry of “urtica”, step by step

Step	Language	Word	Meaning
1	Latin	-āria	—
2	Latin	-ārius	—
3	Proto-Italic	*-āzios	—

urtica — Etymology, Origin & Word History | Etymology Explorer