maturate vs ulcerate

maturate

verb
  • To promote the perfect suppuration of (an abscess). 

  • To undergo perfect suppuration. 

  • To bring to ripeness or maturity; to ripen. 

ulcerate

verb
  • To become ulcerous. 

  • To cause an ulcer to develop. 

adj
  • Having an ulcus, a rounded pore-like aperture, at one or both poles. 

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