fumigant vs suds

fumigant

noun
  • Any substance used, in the gaseous state, to fumigate or disinfect. 

suds

noun
  • Lather; foam or froth formed by mixing soap and water. 

  • Beer. 

verb
  • To cover with, or as if with, soapsuds. 

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