princely
adj.adj. having a lot of money or power, like a king or a prince. You use this to describe someone who is very rich or someone who acts like a leader.
adj. possessing great wealth, power, or status; behaving in a manner befitting a monarch. Often used to describe a generous or high-handed attitude.
He lived a princely life with many servants.
The king treated his guests with princely generosity, offering them gifts and a royal feast.
Despite his modest origins, he adopted a princely demeanor, treating everyone in his household with a level of formality that suggested a much higher social rank.
From Middle English princely, pryncely, equivalent to prince + -ly (adjectival suffix). Compare Dutch prinselijk.
From prince + -ly (adverbial suffix).