chestnut vs rosaceous

chestnut

adj
  • Of a deep reddish-brown colour, like that of a chestnut. 

noun
  • A round or oval horny plate found on the inner side of the leg of a horse or other animal, similar to a birthmark on a human. 

  • A tree or shrub of the genus Castanea. 

  • The wood of a chestnut tree. 

  • A dark, reddish-brown colour, as seen on the fruit of the chestnut tree. 

  • A reddish-brown horse. 

  • A nut of this tree or shrub. 

  • An old joke; a worn-out meme, phrase, ploy, etc. so often repeated as to have grown tiresome or ineffective (often in the phrase "old chestnut"). 

  • The horse-chestnut. 

rosaceous

adj
  • Resembling or characteristic of rosacea; rosy; reddish. 

  • Of or pertaining to a rose, or a member of the Rosaceae family of plants. 

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