gob vs grist

gob

noun
  • Waste material in old mine workings, goaf. 

  • The mouth. 

  • A sailor. 

  • A whoopee pie. 

  • A lump of soft or sticky material. 

  • Saliva or phlegm. 

verb
  • To pack away waste material in order to support the walls of the mine. 

  • To spit, especially to spit phlegm. 

  • To gather into a lump. 

grist

noun
  • Grain that is to be ground in a mill. 

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

verb
  • To grind in a mill. 

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