The purpose of Newspeak was not only to provide a medium of expression for the world-view and mental habits proper to the devotees of [Progressive Socialism], but
to make all other modes of thought impossible.This was done partly by the invention of new words, but chiefly by eliminating undesirable words and by stripping such words as remained of unorthodox [politically incorrect] meanings, and so far as possible of all secondary meanings whatever.
Yes. 1984 has an uncanny habit of describing this kind of thing. Emerson: old words are perverted to stand for things which are not.