leaf litter vs ort

leaf litter

noun
  • Dead plant material, such as fallen leaves, bark, and twigs, that has fallen to the ground and may be used by animals as habitat or for nest-building, eventually decomposing and releasing nutrients into the soil. 

ort

noun
  • A fragment; a scrap of leftover food; any remainder; a piece of refuse. 

verb
  • To turn away from with disgust; refuse. 

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