Where does “tittle” come from?

Tittle comes from Latin titulus, meaning "inscription" or "label," though the semantic connection to the modern English sense remains uncertain.

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

Definitions

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

Ancestry of “tittle”, step by step

Step	Language	Word	Meaning
1	Middle English	title	small written mark or stroke; smallest part;...
2	Old English	titul	title, heading, superscription
3	Latin	titulus	title; placard, tablet; inscription

Every word from Latin titulus →Every word from Old English titul →Every word from Middle English title →