directly vs whereupon

directly

conj
  • As soon as; immediately (elliptical for directly that/as/when) 

adv
  • Soon; next; in due time; as soon as it becomes convenient. 

  • Plainly, without circumlocution or ambiguity; absolutely; in express terms. 

  • Straightforwardly; honestly. 

  • In a direct manner; in a straight line or course. 

  • In a straightforward way; without anything intervening; not by secondary but by direct means. 

  • Exactly; just; at the shortest possible distance. 

whereupon

conj
  • After which, in consequence. 

  • Upon which. 

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