Where does “scriba” come from?

scriba (Vulgar Latin) comes from Latin scriba, from Latin -a, from Proto-Italic -ā, from Proto-Indo-European -éh₂.

Ancestry of “scriba”, step by step

Step	Language	Word	Meaning
1	Latin	scriba	writer, scribe, secretary, clerk
2	Latin	-a	suffixed to the roots of verbs, forms agent...
3	Proto-Italic	-ā	—
4	Proto-Indo-European	-éh₂	—

scriba — Etymology, Origin & Word History | Etymology Explorer