archaeologic vs prediluvian

archaeologic

adj

  • Pertaining to archaeology. 

  • antiquated 

prediluvian

adj

  • Before the Flood; antediluvian. 

noun

  • One who lived before the Flood; an antediluvian. 

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