To bind oneself in contract.
To enter into, or promise something by, a covenant.
To enter a formal agreement.
To make a stipulation.
A promise, incidental to a deed or contract, either express or implied.
An incidental clause in an agreement.
An agreement to do or not do a particular thing.
A pact or binding agreement between two or more parties.
To bargain, haggle or negotiate over a sale.
To barter.
A chaffering, barter, or exchange, of small wares.