excrescence vs verruca

excrescence

noun
  • Something, usually abnormal, which grows out of something else. 

  • The epenthesis of a consonant, e.g., warmth as [ˈwɔrmpθ] (adding a [p] between [m] and [θ]), or -t (Etymology 2). 

  • A disfiguring or unwanted mark or adjunct. 

verruca

noun
  • A wart, especially one that grows on the foot, caused by a human papilloma virus. 

  • A sexine element similar to a wart. 

  • A rounded projection or wart. 

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