fumble vs grabble

fumble

verb
  • To grope awkwardly in trying to find something 

  • To grope about in perplexity; to seek awkwardly. 

  • To drop a ball or a baton etc. by accident. 

  • To handle much; to play childishly; to turn over and over. 

  • To blunder uncertainly. 

  • To handle nervously or awkwardly. 

noun
  • A ball etc. that has been dropped by accident. 

  • A dessert similar to a cross between a fool and a crumble. 

grabble

verb
  • To search with one's hands and fingers; to attempt to grasp something. 

  • To attempt to grab; to grasp at (something). 

  • To catch fish by reaching into the water with one's hand. 

  • To pull, lift or dig (something) (out of the ground) by searching with one's hands and fingers. 

  • To utter inarticulate sounds, often quickly and loudly; to say (something) quickly, idly or foolishly. 

  • To touch (someone) with one's hands or fingers, sometimes in a sexual way. 

  • To pick (something or someone) up hastily, roughly or clumsily. 

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