draw out vs perpetuate

draw out

verb
  • To make something last for more time than is necessary; prolong; extend. 

  • To use means to entice or force (an animal) from its hole or similar hiding place. 

  • To improve a losing hand to a winning hand by receiving additional cards. 

  • To physically extract, as blood from a vein. 

  • To extract, bring out, as concealed information; elicit; educe. 

  • To cause (a shy person) to be more open or talkative. 

perpetuate

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. 

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

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