Emily Dickinson Lexicon

AR'BAL-IST, n. [From arcus, a bow, and balista, L., an engine to throw stones; Gr. βαλλω, to throw.]

A cross-bow. This consists of a steel bow set in a shaft of wood, furnished with a string and a trigger; and is bent with a piece of iron. It serves to throw bullets, darts, arrows, &c. – Encyc.