oblige

verb

1. (transitive)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.”

   “Tho' he was some time awake before me, yet did he not offer to disturb a repose he had given me so much occasion for; but on my first stirring, which was not till past ten o'clock, I was oblig'd to endure one more trial of his manhood.”

2. (intransitive, transitive)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.”

   “In the mean time I have another trouble to give you, if you will oblige me in it; and that is to get me a sight of the famous Orrery, which I have heard you and others so often speak of; and which I think was made by Mr. Rowley, the famous Mathematical Instrument-Maker.”

3. (transitive)To cause somebody to feel indebted.

   “I am much obliged to you for your recent help.”