slabber vs yatter

slabber

verb
  • To let saliva or other liquid fall from the mouth carelessly; drivel; slaver. 

  • To cover, as with a liquid spill; soil; befoul. 

  • To wet and befoul by liquids falling carelessly from the mouth; slaver; slobber. 

  • To eat hastily or in a slovenly manner, as liquid food. 

noun
  • A saw for cutting slabs from logs. 

  • A slabbing machine. 

  • Moisture falling from the mouth; slaver. 

yatter

verb
  • To natter; to prattle; to chatter mindlessly. 

noun
  • Natter; prattle; mindless chatter. 

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