To be indebted to someone.
To constrain someone by force or by social, moral or legal means.
To do (someone) a service or favour (hence, originally, creating an obligation).
Wanton or unrestrained behavior or emotion.
A humorous or entertaining event or person.
A tumultuous disturbance of the public peace by a large group of people, often involving violence or damage to property.
A wide and unconstrained variety.
To cause to riot; to throw into a tumult.
To annoy.
To create or take part in a riot; to raise an uproar or sedition.