fortuitously vs knowingly

fortuitously

adv
  • In a fortuitous manner; in a manner of happening by chance; coincidentally; accidentally. 

  • In a fortuitous manner; in a manner of happening by a lucky chance; luckily; fortunately. 

knowingly

adv
  • With knowledge of all relevant facts. 

  • In the manner of one who knows. 

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