Oblige

Webster's Dictionary of the English Language

·vt To attach, as by a bond.

II. Oblige ·vt To constrain by physical, moral, or legal force; to put under obligation to do or forbear something.

III. Oblige ·vt To bind by some favor rendered; to place under a debt; hence, to do a favor to; to Please; to Gratify; to Accommodate.