apropos vs toward

apropos

prep
  • Regarding or concerning. 

adj
  • Of an appropriate or pertinent nature. 

  • by the way, incidental 

adv
  • To the purpose; appropriately. 

  • By the way. 

  • Timely; at a good time. 

toward

prep
  • In relation to (someone or something). 

  • For the purpose of attaining (an aim). 

  • In the direction of. 

  • Located close to; near (a time or place). 

adj
  • Yielding, pliant; docile; ready or apt to learn; not froward. 

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