 The formal Hindi standard, from which much of the Persian, Arabic and English vocabulary has been replaced by neologisms compounding "tatsam" words, is called "Śuddh Hindi" (pure Hindi), and is viewed as a more prestigious dialect over other more colloquial forms of Hindi.Excessive use of "tatsam" words sometimes creates problems for native speakers.They may have Sanskrit consonant clusters which do not exist in native Hindi, causing difficulties in pronunciation.