arbalest n. + Add to list ar·balest SynonymsEtymology Synonyms arbalistballistabricolecatapultmangonelonagertrebuchettrebucketOriginLATarcus→LA-LATarcuballista→OFRarbaleste→MEarblast→ENarbalest From Middle English arblast, from Old French arbaleste (modern arbalète), from Late Latin arcuballista, from Latin arcus + ballista.