To restrict or block something with a hindrance or impediment.
To burden with a legal claim or other obligation.
To load down something with a burden.
To keep delaying; to continue to hinder; to prevent from progressing.
To put off; to postpone.
To decelerate; to slow down.
Retardation; delay.
A slowing down of the tempo; a ritardando.
A person or being who is extremely stupid or slow to learn.