asphalt vs tessellate

asphalt

verb
  • To pave with asphalt. 

noun
  • A sticky, black and highly viscous liquid or semi-solid, composed almost entirely of bitumen, that is present in most crude petroleums and in some natural deposits. 

tessellate

verb
  • To cover with tiles or stones, as a mosaic; to tile. 

  • To completely fill (an area) when multiple copies of one or more two-dimensional shapes are placed edge to edge. 

  • Of a two-dimensional shape, such that multiple copies of itself placed edge to edge cover an area leaving no space between the shapes. 

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