padlock

n.

  1. A portable lock with a bow which is usually jointed or pivoted at one end so that it can be opened, the other end being fastened by the bolt, -- used for fastening by passing the bow through a staple over a hasp or through the links of a chain, etc.
  2. Fig.: A curb; a restraint.

v. t.

  1. To fasten with, or as with, a padlock; to stop; to shut; to confine as by a padlock.