knightly

"He is a student of life."

"Quality of life is usually determined by health, education, and income."

"The documents pertaining to my car insurance claim are now all submitted. "

"He swept off his hat and made a deep courtly bow."

"The firefighter was gallant in rescuing the cat from the tree. "

"It takes a lot of courage to be successful in business."

"The young man was known for his chivalrous treatment of his classmates, always offering his seat to the elderly woman or helping anyone who needed it. "

"His conduct was not befitting an officer of his station."

"In the medieval story, the young squires served as knights in training, attending to the Lord's needs and learning the skills of combat. "

"a courteous gentleman   a courteous gesture"

"He was dressed too formally for the occasion."

"The young child admired the rainbow stretching across the sky. "