palatine vs Dark Ages

palatine and Dark Ages both are nouns.

Word	Noun	Adjective	Verb	Adverb
palatine	Yes	Yes	No	No
Dark Ages	Yes	No	No	No

palatine (noun)	Dark Ages (noun)
either of two irregularly shaped bones that form the back of the hard palate and helps to form the nasal cavity and the floor of the orbits	the period of history between classical antiquity and the Italian Renaissance
(Middle Ages) the lord of a palatinate who exercised sovereign powers over his lands
any of various important officials in ancient Rome

palatine (adjective)	Dark Ages (adjective)
of or relating to a palace
of or relating to a count palatine and his royal prerogatives
relating to or lying near the palate