Ballista

Part of speech: noun

Pronunciation: /bəˈlɪstə/

Definitions

1. A large, ancient weapon that resembles a crossbow and was used to propel heavy missiles for besieging fortifications or attacking troops
2. This historical siege apparatus functioned by launching projectiles over significant distances to damage enemies or structures
3. A large mechanical device from antiquity designed to hurl heavy bolts or stones across long distances during warfare

Etymology: The ballista was one of the most effective artillery machines of the ancient world, and its name comes from a Greek verb meaning simply "to throw." The Greek word "ballístra" was built from "bállō," and the Romans borrowed it as "ballista," which kept the same job description: a machine for throwing. Its core mechanism was torsion, with twisted sinew or hair storing energy that launched a bolt or stone with great force. English borrowed the word directly from Latin, as a learned term, so it reached the language through scholarship and military history rather than everyday speech. That is why it still sounds technical and foreign, unlike older English words for siege engines. It has stayed in use mainly in historical and archaeological writing about ancient warfare.

Synonyms: catapult, siege engine, weapon, launcher, artillery