rosewood vs shillelagh

rosewood

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

  • 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. 

shillelagh

noun
  • A wooden (traditionally blackthorn (sloe) wood) club ending with a large knob. 

  • Any cudgel, whether or not of Irish origin. 

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