bounden

To tie; to confine by any ligature.

To cohere or stick together in a mass.

"Just to make the cheese more binding"

To be restrained from motion, or from customary or natural action, as by friction.

"I wish I knew why the sewing machine binds up after I use it for a while."

Now chiefly in the term bounden duty: made obligatory; binding.

Bound.