Kingly
Kingly , adjective
Belonging to, suitable to, or becoming, a king; characteristic of, or resembling, a king; directed or administered by a king; monarchical; royal; sovereign; regal; august; noble; grand.
Kingly magnificence.
A kingly government.
The kingly couch.
The kingliest kings are crowned with thorn.
Leave kingly backs to cope with kingly cares.
Kingly , adverb
In a kingly or kinglike manner. — Shakespeare
Low bowed the rest; he, kingly, did but nod.
Although this citation, one from Paradise Lost, and one from Shakespeare's ll4th Sonnet are given by lexicographers as examples of adverbial use, it is by no means clear that the word is not an adjective in each instance.