swaying vs wobble

swaying

noun
  • The motion of something that sways. 

  • An injury caused to a horse's back by violent strains or overloading. 

wobble

noun
  • An unsteady motion. 

  • A variation in the third nucleotide of a codon that codes for a specific aminoacid 

  • A tremulous sound. 

  • A low-frequency oscillation sometimes used in dubstep 

verb
  • To move with an uneven or rocking motion, or unsteadily to and fro. 

  • To tremble or quaver. 

  • To cause to wobble. 

  • To vacillate in one's opinions. 

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