old-time vs prediluvian

old-time

adj

  • From or reminiscent of an earlier time or era; old-fashioned. 

prediluvian

adj

  • Before the Flood; antediluvian. 

noun

  • One who lived before the Flood; an antediluvian. 

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