deadbolt vs hasp

deadbolt

noun
  • The part of the lock which is moved when the key is engaged. 

  • A kind of lock in which the bolt (moving portion) is held in position by the cylinder rather than by a spring and so cannot be retracted except by turning the cylinder. 

verb
  • To fasten or secure with a deadbolt. 

hasp

noun
  • A clasp, especially a metal strap fastened by a padlock or a pin; also, a hook for fastening a door. 

  • A spindle to wind yarn, thread, or silk on. 

  • An instrument for cutting the surface of grassland; a scarifier. 

verb
  • To shut or fasten with a hasp. 

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