in law, is the consent and agreement of two or more persons to do, or not to do, some act, or thing, contracted between them. Also it is the declaration the parties make, that they will stand to such agreement, relating to lands or other things; and is created by deed in writing, sealed and executed by the parties, or otherwise it may be implied in the contract as incident thereto. And if the persons do not perform their covenants, a writ or action of covenant is the remedy to recover damages for the breach of them.