Where does “sbalestramento” come from?

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

sbalestramento (Italian): tension, strain

Definitions

tension, strain

Ancestry of “sbalestramento”, step by step

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

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