Another work for catapult is trebuchet.
You use a catapult to launch things into the air.
Catapalt
The word catapult came from ancient greece. It was also invented there. It means from two seperate words kata pultos
A Roman catapult can throw a 6 pound object a third of a mile.
Owen designed a new catapult for the navy to use on its aircraft carriers. Lady Taylor Smith
catapult
The Greek katapeltes.
Hurl, eject, catapult.
You turn orange. You get an onager. (catapult)
The word you're looking for is.... catapult.
Arbalest, slingshot, hurler, shooter, propeller...
catapult