JOT jŏt (Matt 5:18 KJV, ASV, Knox tr.) IOTA, ī ō’ te, RSV; LETTER NEB. An Eng. transliteration of Gr. ἰῶτα, G2740, the nearest Gr. equivalent of Heb. י, the smallest letter of the Heb. alphabet. See Tittle. The meaning of vv. 17, 18 is that the smallest letter or part of a letter shall not be erased from the law until all things that have been promised come to pass.