Increase in value; improvement.
Enhancement is generally used to mean an increase in the market value of property that is the result of an improvement.
The enhancement of a criminal penalty means the increase of punishment, such as by increasing a jail sentence. This type of enhancement might be affected when the criminal's motive is found to be particularly depraved.
Law Library - American Law and Legal InformationFree Legal Encyclopedia: Embargo to Estate pur (or per) autre vie