bookworm vs moth

bookworm

noun
  • Any of various insects that infest books. 

  • An avid book reader. 

moth

noun
  • A usually nocturnal insect of the order Lepidoptera, distinguished from butterflies by feather-like antennae. 

  • Anything that gradually and silently eats, consumes, or wastes any other thing. 

  • The plant Vigna aconitifolia, moth bean. 

verb
  • To hunt for moths. 

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