cudgel vs rosewood

cudgel

verb
  • To strike with a cudgel. 

  • To exercise (one's wits or brains). 

noun
  • Anything that can be used as a threat to force one's will on another. 

  • A short heavy club with a rounded head used as a weapon. 

rosewood

noun
  • Any of several dozen woods, resembling that of Dalbergia nigra in some respect. 

  • Wood and plant of Pterocarpus spp., for example African rosewood or mukula or Burmese rosewood (Pterocarpus indicus, syn. Pterocarpus santalinus). 

  • The fragrant wood of Dalbergia nigra, a Brazilian tree in the legume family, which has a sweet smell. 

  • The wood of a South American tree, Aniba rosaeodora, in the laurel family, with fragrant wood from which an essential oil is distilled. 

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