fungus vs perishing

fungus

noun
  • Any member of the kingdom Fungi; a eukaryotic organism typically having chitin cell walls but no chlorophyll or plastids. Fungi may be unicellular or multicellular. 

perishing

noun
  • The act of something that perishes; decay or destruction. 

adj
  • Extreme; used of environmental or bodily conditions. 

  • Extremely cold. 

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