Webster's Revised Unabridged Dictionary · 1913

Disoblige

Disoblige , transitive verb

[Prefix dis- + oblige: compare French désobliger.]

1.
To do an act which contravenes the will or desires of; to offend by an act of unkindness or incivility; to displease; to refrain from obliging; to be unaccommodating to.
Those... who slight and disoblige their friends, shall infallibly come to know the value of them by having none when they shall most need them. — South
My plan has given offense to some gentlemen, whom it would not be very safe to disoblige. — Addison
2.
To release from obligation. [Obsolete]
Absolving and disobliging from a more general command for some just and reasonable cause. — Milton