decoder vs terp

decoder

noun
  • A person who decodes secret messages 

  • A device that decodes a scrambled electronic signal e.g. of a satellite television signal 

terp

noun
  • An interpreter (person who translates). 

  • An interpreter (program that parses and executes another program). 

  • An artificial dwelling mound found on the North European Plain, created to provide safe ground during storm surges, high tides and sea or river flooding. 

  • Any of various essential oils containing monoterpene alcohols which are added to a henna mix to darken the color. 

verb
  • To add such an essential oil to (a henna mix). 

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