noun
tittle
TIT-ul/tˈɪtʌl/
A tiny detail, especially a small written mark.
The tiny tittle above the letter completes the lowercase i.

Etymology
Latin titulus, meaning an inscription or label, also came to mean a stroke above an abbreviated word indicating omitted letters. This specialized use connects tittle with a tiny written mark rather than a heading or title.
In context
the dollet has a little extension that moves beyond the downward stroke that helps to distinguish it from the Resh that's a tittle
More examples
- A misplaced tittle makes the handwritten word hard to read.
- He follows the instructions down to the last tittle.
- The copy preserves every tittle of the original lettering.
Forms
tittle · tittles