covenant

A covenant was originally an obligation created by deed, which may be positive or negative in nature. That is to say, an obligation to do something or an obligation not to do something. The word is now used as a reference to promises made in agreements supported by consideration. Covenants may be read a reference to a "promise".

Usage: The purchaser of the land covenanted not to build higher than 20 metres.

Related Words: deed; restrictive covenant; contract; agreement.