stumble vs wamble

stumble

noun
  • A clumsy walk. 

  • An error or blunder. 

  • A fall, trip or substantial misstep. 

verb
  • To cause to stumble or trip. 

  • To trip or fall; to walk clumsily. 

  • To make a mistake or have trouble. 

  • To strike or happen (upon a person or thing) without design; to fall or light by chance; with on, upon, or against. 

  • To mislead; to confound; to cause to err or to fall. 

wamble

noun
  • An unsteady walk; a staggering or wobbling. 

  • A rumble of the stomach. 

verb
  • To twist and turn; to wriggle; to roll over. 

  • To feel nauseous, to churn (of stomach). 

  • To wobble, to totter, to waver; to walk with an unsteady gait. 

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