berry vs yolk

berry

noun
  • One of the ova or eggs of a fish. 

  • A burrow, especially a rabbit's burrow. 

  • A small succulent fruit, of any one of many varieties. 

  • A soft fruit which develops from a single ovary and contains seeds not encased in pits. 

  • A police car. 

  • A mound; a barrow. 

  • An excavation; a military mine. 

  • A coffee bean. 

verb
  • To bear or produce berries. 

  • To pick berries. 

  • To beat; give a beating to; thrash. 

  • To thresh (grain). 

yolk

noun
  • The yellow, spherical part of an egg that is surrounded by the white albumen, and serves as nutriment for the growing young. 

  • The grease in a sheep's fleece; lanolin. 

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