To enter into, or promise something by, a covenant.
To enter a formal agreement.
To make a stipulation.
To bind oneself in contract.
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 break a promise or commitment; to go back on one's word.
In a card game, to break one's commitment to follow suit when capable.