abbreviate vs perpetuate

abbreviate

verb
  • To make shorter; to shorten (in time); to abridge; to shorten by ending sooner than planned. 

  • To reduce to lower terms, as a fraction. 

  • To reduce a word or phrase by means of contraction or omission to a shorter recognizable form. 

adj
  • Having one part relatively shorter than another or than the ordinary type. 

perpetuate

adj
  • Perpetual, or made perpetual; continued for an indefinite time. 

verb
  • To make (something) perpetual; to make (something) continue for an indefinite time; also, to preserve (something) from extinction or oblivion. 

  • To prolong the existence of (something) by repetition; to reinforce. 

  • To record (the testimony of a witness) which may be lost before a matter comes to trial. 

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