Source : Free On-Line Dictionary of Computing

featurectomy
     
        /fee"ch*r-ek"t*-mee/ The act of removing a {feature} from a
        program.  Featurectomies come in two flavours, the "righteous"
        and the "reluctant".  Righteous featurectomies are performed
        because the remover believes the program would be more elegant
        without the feature, or there is already an equivalent and
        better way to achieve the same end.  (Doing so is not quite
        the same thing as removing a {misfeature}.)  Reluctant
        featurectomies are performed to satisfy some external
        constraint such as code size or execution speed.
     
        [{Jargon File}]
     
        (1994-10-20)