pontifical vs pontiff

pontifical and pontiff both are nouns.

Word	Noun	Adjective	Verb	Adverb
pontifical	Yes	Yes	No	No
pontiff	Yes	No	No	No

pontifical (noun)	pontiff (noun)
the vestments and other insignia of a pontiff (especially a bishop)	the head of the Roman Catholic Church

pontifical (adjective)	pontiff (adjective)
denoting or governed by or relating to a bishop or bishops
proceeding from or ordered by or subject to a pope or the papacy regarded as the successor of the Apostles
puffed up with vanity