plaw vs scald

plaw

verb
  • To boil; seethe. 

  • To boil; boil slightly; parboil. 

noun
  • A boiling. 

scald

verb
  • To heat almost to boiling. 

  • To burn with hot liquid. 

noun
  • A burn, or injury to the skin or flesh, by hot liquid or steam. 

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