pave vs tessellate

pave

verb
  • To cover something with paving slabs. 

  • To cover with stone, concrete, blacktop or other solid covering, especially to aid travel. 

  • To pave the way for; to make easy and smooth. 

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 pave and tessellate occurred in a corpus of books? (source: Google Ngram Viewer )