explain vs palter

explain

verb
  • To make plain, manifest, or intelligible; to clear of obscurity; to illustrate the meaning of. 

  • To give a valid excuse for past behavior. 

  • To make something plain or intelligible. 

palter

verb
  • To babble; to chatter. 

  • To talk insincerely; to prevaricate or equivocate in speech or actions. 

  • To haggle. 

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