hereat vs this way

hereat

adv

  • At this; because of this. 

  • At this time; upon this event. 

this way

adv

  • As a consequence. 

  • In the way indicated; as follows; thus 

noun

  • In the indicated direction or manner. 

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