on account of vs whereupon

on account of

conj
  • On account of the fact that: because, since. 

prep
  • Because of, due to, owing to. 

  • On behalf of the (monetary) account of; (idiomatic, originally figurative) for the sake of. 

whereupon

conj
  • After which, in consequence. 

  • Upon which. 

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