drawl vs vocalism

drawl

noun
  • A way of speaking slowly while lengthening vowel sounds and running words together. Characteristic of some southern US accents, as well as Scots. 

verb
  • To move slowly and heavily; move in a dull, slow, lazy manner. 

  • To utter or pronounce in a dull, spiritless tone, as if by dragging out the utterance. 

  • To drag on slowly and heavily; to while or dawdle away time indolently. 

  • To speak with a slow, spiritless utterance, from affectation, laziness, or lack of interest. 

vocalism

noun
  • The vowel sounds used in a language. 

  • Speaking or singing. 

How often have the words drawl and vocalism occurred in a corpus of books? (source: Google Ngram Viewer )