Tittle

a point, ( Matthew 5:18 ; Luke 16:17 ), the minute point or stroke added to some letters of the Hebrew alphabet to distinguish them from others which they resemble; hence, the very least point.

A point of a letter of the alphabet.

Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil. For verily I say unto you, till heaven and earth pass, one jot or one TITTLE shall in no wise pass from the law, till all be fulfilled. ( Matthew 5:17-18 )

TITTLE

tit'-'-l (keraia (Westcott-Hort, kerea), from keras, "a horn"):

A small stroke or mark, specif. on a letter to denote accent, or as a diacritical mark; used only in Matthew 5:18 and Luke 16:17. In the first passage it is used in connection with iota, or jot, i.e. the very smallest thing, and in both it refers to the minutiae of the Law. It is well known that the scribes paid the greatest attention to such marks attached to the letters in the Hebrew Scriptures, the Massoretic Text of which abounds in them.

See JOT; YODH.