catapultian vs catapult

catapultian is not a noun while catapult is a noun.

Word	Noun	Adjective	Verb	Adverb
catapultian	No	Yes	No	No
catapult	Yes	No	Yes	No

catapultian (noun)	catapult (noun)
	an engine that provided medieval artillery used during sieges; a heavy war engine for hurling large stones and other missiles
	a plaything consisting of a Y-shaped stick with elastic between the arms; used to propel small stones
	a device that launches aircraft from a warship

catapultian (adjective)	catapult (adjective)
of or like a catapult

catapultian (verb)	catapult (verb)
	shoot forth or launch, as if from a catapult
	hurl as if with a sling