jot vs tittle

jot

noun
  • A small amount, bit; the smallest amount. 

  • Iota; the smallest letter or stroke of any writing. 

  • A brief and hurriedly written note. 

verb
  • To write quickly. 

tittle

noun
  • A small, insignificant amount (of something); a modicum or speck. 

  • Any small dot, stroke, or diacritical mark, especially if part of a letter, or if a letter-like abbreviation; in particular, the dots over the Latin letters i and j. 

verb
  • To chatter. 

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