noble vs princely

noble is a noun but princely is not a noun.

Word	Noun	Adjective	Verb	Adverb
noble	Yes	Yes	No	No
princely	No	Yes	No	No

noble (noun)	princely (noun)
a titled peer of the realm

noble (adjective)	princely (adjective)
having or showing or indicative of high or elevated character	having the rank of or befitting a prince
of or belonging to or constituting the hereditary aristocracy especially as derived from feudal times	ostentatiously rich and superior in quality
impressive in size, manner, or appearance
inert especially toward oxygen