catapult vs catapultian

catapult is a noun but catapultian is not a noun.

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

catapult (noun)	catapultian (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

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

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