ambulate vs toddle

ambulate

verb
  • To walk; to relocate oneself under the power of one's own legs. 

toddle

verb
  • To walk unsteadily, as a small child does. 

  • To walk in a carefree manner. 

noun
  • A carefree or aimless gait; a stroll. 

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