Linguistic violence is never so manifest as in all the corrections, momentary or long-lasting, to which dominated speakers, in a desperate effort towards correction, consciously or unconsciously subject the stigmatized aspects of their pronunciation, their vocabulary (with all the forms of euphemism) and their syntax; or in the confusion which makes them `lose their means', rendering them incapable of `finding their words', as if they had been suddenly dispossessed of their own language.(bolding mine)This is exactly what happens to Snape.