keeve vs scow

keeve

verb
  • To heave; to tilt, as a cart. 

  • To set in a keeve, or tub, for fermentation. 

noun
  • A large vat used in dressing ores. 

  • A vat or tub in which the mash is made; a mash tub. 

  • A bleaching vat; a kier. 

scow

verb
  • To transport in a scow. 

noun
  • A large flat-bottomed boat, having broad, square ends. 

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