detritus vs spoilage

detritus

noun
  • Any debris or fragments of disintegrated material. 

  • Organic waste material from decomposing dead plants or animals. 

  • Pieces of rock broken off by ice, glacier, or erosion. 

spoilage

noun
  • The part of something that has spoiled. 

  • The process of spoiling. 

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