duteous

/ˈduːtiəs/
adjective
  1. Obedient and respectful; doing what is expected or required out of a sense of duty.
    • The duteous student always completed his homework on time.
    • She gave a duteous bow to the elderly teacher.
    • The knight remained duteous to his king even in difficult times.
What does "duteous" mean? | whatsthatwordmean | whatsthatwordmean