grist vs mote

grist

noun
  • A given size of rope, common grist being a rope three inches in circumference, with twenty yarns in each of the three strands. 

  • Grain that is to be ground in a mill. 

verb
  • To grind in a mill. 

mote

noun
  • A tiny computer for remote sensing; a component element of smartdust. 

  • A small particle; a speck. 

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