coverall vs smock

coverall

noun
  • A loose-fitting protective garment worn over other clothing. 

smock

noun
  • A loose garment worn as protection by a painter, etc. 

  • A type of undergarment worn by women; a shift or slip. 

  • A blouse; a smock frock. 

verb
  • To provide with, or clothe in, a smock or a smock frock. 

  • To apply smocking. 

adj
  • Hence, of or pertaining to a woman. 

  • Of or pertaining to a smock; resembling a smock 

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