stably vs weakly

stably

noun
  • A medieval hunting practice in which a group of hunters and hounds are stationed around the perimeter of a wood during a hunt to prevent the escape of the game. 

adv
  • In a stable manner. 

weakly

adj
  • Frail, sickly or of a delicate constitution; weak. 

adv
  • With little strength or force. 

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