tremor vs wamble

tremor

verb
  • To shake or quiver excessively and rapidly or involuntarily; to tremble. 

noun
  • An earthquake. 

  • A shake, quiver, or vibration. 

  • A rhythmic, uncontrollable shaking of all or part of the body due to partial muscle contractions. 

wamble

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

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

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

noun
  • An unsteady walk; a staggering or wobbling. 

  • A rumble of the stomach. 

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