depalatalize

depalatalize (third-person singular simple present depalatalizes, present participle depalatalizing, simple past and past participle depalatalized)
(phonetics, transitive) To modify (a sound) so that it is no longer palatal or phonetically palatalized.
(phonetics, intransitive, unaccusative, of a sound) To be modified so that it is no longer palatal or palatalized.