mislaid vs unredeemed

mislaid

adj
  • Cannot be currently found, put in an obscure place, lost - often temporarily. 

unredeemed

adj
  • Unspent; not used in a purchase, and thus still usable. 

  • Not redeemed; not granted redemption or salvation; unsaved. 

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