1) Arbalest 2) Arbalist 3) Artillery 4) Ballista 5) Bricole 6) Catapult 7) French word used in English 8) Heavy weapon 9) Onager 10) Ordnance 11) Trebuchet 12) Trebucket Found on https://www.crosswordclues.com/clue/mangonel
Man'go·nel noun [ Old French mangonel , Late Latin manganellus , manganum , from Greek ... See Mangle , noun ] A military engine formerly used for throwing stones and javelins. Found on http://www.encyclo.co.uk/webster/M/17