1.AdjectiveBefitting of a royal court; reflecting the manners or behaviour of people at court; stately, rich or fine, and so suitable for a royal court.
"He swept off his hat and made a deep courtly bow.; The troubadours sang songs about courtly love.; courtly furniture"
2.AdjectiveOf or relating to a royal court.
"She tried to remain aloof from courtly intrigues."
3.AdjectiveOverly eager to please or obey.
4.AdverbIn the manner of a royal court; in a manner befitting of a royal court.