oblige

verb3

1. •
   To constrain someone by force or by social, moral or legal means.

   • Your carelessness obliges firmness on my part.
   • I am obliged to report to the police station every week.
2. •
   To do (someone) a service or favour (hence, originally, creating an obligation).

   • He obliged me by not parking his car in the drive.
   • The singer obliged(us) with an encore.
3. •
   To cause somebody to feel indebted.

   • I am much obliged to you for your recent help.