scoria vs scunge

scoria

noun
  • The slag or dross that remains after the smelting of metal from an ore. 

  • Rough masses of rock formed by solidified lava, and which can be found around a volcano's crater. 

scunge

noun
  • Muck, scum, dirt, dirtiness; also used attributively. 

  • A scrounger; one who habitually borrows. 

  • A dirty or untidy person; one who takes no pride in their appearance. 

  • A scoundrel; a worthless or despicable person. 

verb
  • To mark with scunge; to begrime or besmirch. 

  • To scrounge; to borrow. 

  • To slink about; to sneak, to insinuate. 

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