term:

Nolle Prosequi

nolle prosequi n

[Latin, to be unwilling to pursue]
: an entry in a criminal action denoting that the prosecutor will not prosecute the case further in whole or as to one or more of several counts or one or more of several defendants compare non prosequitur

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.