prober vs searcher

prober

searcher

noun
  • An officer in London appointed to examine the bodies of the dead, and report the cause of death. 

  • An officer who apprehended idlers on the street during church hours in Scotland. 

  • A customs officer responsible for searching ships, merchandise, luggage, etc. 

  • An inspector of leather. 

  • A sieve or strainer. 

  • One who searches. 

  • An instrument for examining the bore of a cannon, to detect cavities. 

  • An implement for sampling butter. 

  • An instrument for feeling after calculi in the bladder, etc. 

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