espy vs evade

espy

verb
  • To find out or observe (someone or something, especially if not easy to see) by spying or looking; to catch sight of; to see; to spot. 

  • To see (someone or something) without foreplanning or unexpectedly. 

evade

verb
  • To get away from by cunning; to avoid by using dexterity, subterfuge, address, or ingenuity; to cleverly escape from 

  • To escape; to slip away; — sometimes with from. 

  • To attempt to escape; to practice artifice or sophistry, for the purpose of eluding. 

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