behold vs onlook

behold

verb
  • To look at or see (someone or something), especially appreciatively; to descry, to look upon. 

  • To look. 

  • To contemplate (someone or something). 

intj
  • look, a call of attention to something 

  • lo! 

onlook

verb
  • To look on or look at; watch; observe; view; regard. 

noun
  • The act of looking on (something); observation. 

  • One's perspective or outlook. 

  • That which is looked at, regarded, or considered. 

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