monarchical vs monarchy

monarchical is not a noun while monarchy is a noun.

Word	Noun	Adjective	Verb	Adverb
monarchical	No	Yes	No	No
monarchy	Yes	No	No	No

monarchical (noun)	monarchy (noun)
	an autocracy governed by a monarch who usually inherits the authority

monarchical (adjective)	monarchy (adjective)
having the characteristics of or befitting or worthy of a monarch
ruled by or having the supreme power resting with a monarch