stately vs courtly

stately and courtly both are adjectives.

Word	Noun	Adjective	Verb	Adverb
stately	No	Yes	No	No
courtly	No	Yes	No	No

As adjectives, stately and courtly are synonyms defined as:

stately and courtly: refined or imposing in manner or appearance; befitting a royal court

Other synonyms of stately include formal.

stately (adjective)	courtly (adjective)
refined or imposing in manner or appearance; befitting a royal court	refined or imposing in manner or appearance; befitting a royal court
impressive in size, manner, or appearance
of size and dignity suggestive of a statue