fickle vs kittle

fickle

verb
  • To puzzle, perplex, nonplus. 

  • To deceive, flatter. 

adj
  • Changeable. 

  • Quick to change one’s opinion or allegiance; insincere; not loyal or reliable. 

kittle

verb
  • To tickle, to touch lightly. 

  • To bring forth young, as a cat; to kitten; to litter. 

adj
  • Ticklish. 

  • Not easily managed 

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