barrier vs trammel

barrier

noun
  • An obstacle or impediment. 

  • A separation between two areas of the body where specialized cells allow the entry of certain substances but prevent the entry of others. 

  • A martial exercise of the 15th and 16th centuries. 

  • The lists in a tournament. 

  • A structure that bars passage. 

  • A node (in government and binding theory) said to intervene between other nodes A and B if it is a potential governor for B, c-commands B, and does not c-command A. 

  • A boundary or limit. 

verb
  • To block or obstruct with a barrier. 

trammel

noun
  • Whatever impedes activity, progress, or freedom, such as a net or shackle. 

  • A kind of net for catching birds, fishes, or other prey. 

  • A net for confining a woman's hair. 

  • A kind of shackle used for regulating the motions of a horse and making it amble. 

  • A fishing net that has large mesh at the edges and smaller mesh in the middle 

  • A set of rings or other hanging devices, attached to a transverse bar suspended over a fire, used to hang cooking pots etc. 

  • An instrument for drawing ellipses, one part of which consists of a cross with two grooves at right angles to each other, the other being a beam carrying two pins (which slide in those grooves), and also the describing pencil. 

  • A beam compass. 

verb
  • To entangle, as in a net. 

  • To confine; to hamper; to shackle. 

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