centenarian vs centurion

centenarian

noun
  • One who or that which is at least 100 years old. 

adj
  • Aged 100 years or more; extremely old. 

  • Of or relating to centenarians or a centenary celebration. 

centurion

noun
  • A player who scores a century. 

  • An officer of the ancient Roman army, in command of a century of soldiers. 

  • A pilot in the United States Navy who has performed 100 night landings on an aircraft carrier. 

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