Where does “balestraio” come from?

balestraio (Italian) comes from Italian balestra, from Late Latin ballistra, from Latin ballista, from Ancient Greek βαλλίστρα, from Ancient Greek βάλλω, from Proto-Hellenic *gʷəlnō.

balestraio (Italian): crossbow maker or seller

Definitions

crossbow maker or seller

Ancestry of “balestraio”, step by step

Step	Language	Word	Meaning
1	Italian	balestra	crossbow; leaf spring
2	Late Latin	ballistra	—
3	Latin	ballista	ballista
4	Ancient Greek	βαλλίστρα	catapult, engine of war
5	Ancient Greek	βάλλω	I throw, cast, hurl; I let fall; I strike, touch
6	Proto-Hellenic	*gʷəlnō	—

Every word from Proto-Hellenic *gʷəlnō →Every word from Ancient Greek βάλλω →Every word from Ancient Greek βαλλίστρα →