actor vs placer

actor

noun
  • Someone or something that takes part in some action; a doer, an agent. 

  • The entity that performs a role (in use case analysis). 

  • A person who acts a part in a theatrical play or (later) in film or television; a dramatic performer. 

  • The subject performing the action of a verb. 

placer

noun
  • One who places or arranges something. 

  • One who deals in stolen goods; a fence. 

  • A horse, etc. that finishes in a particular place in a race. 

  • A place where the superficial detritus is washed for gold, etc. 

  • Any place holding treasures. 

  • A lamb whose mother has died and which has transferred its attachment to an object, such as a bush or rock, in the locality. 

adj
  • alluvial; occurring in a deposit of sand or earth on a river-bed or bank, particularly with reference to precious metals such as gold or silver 

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