hovel vs mansard

hovel

noun
  • A poor cottage; a small, mean house; a hut. 

  • An open shed for sheltering cattle, or protecting produce, etc., from the weather. 

  • In the manufacture of porcelain, a large, conical brick structure around which the firing kilns are grouped. 

verb
  • To construct a chimney so as to prevent smoking, by making two of the more exposed walls higher than the others, or making an opening on one side near the top. 

  • To put in a hovel; to shelter. 

mansard

noun
  • A mansard roof 

  • The upper storey of a building, surrounded by such a roof 

adj
  • having two slopes on each side, the lower being steeper than the upper 

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