Jot

Jot - (Easton's Bible Dictionary)

Or Iota, the smallest letter of the Greek alphabet, used metaphorically or proverbially for the smallest thing (Matt. 5:18); or it may be = yod, which is the smallest of the Hebrew letters.

Jot - (Webster's 1828 Dictionary)

JOT, n. [ Heb. yod.] An iota; a point; a tittle; the least quantity assignable.

Till heaven and earth pass, one jot or one title shall in no wise pass from the law till all shall be fulfilled. Mat 5.

A man may read much, and acquire not a jot of knowledge, or be a jot the wiser.

JOT, v.t. To set down; to make a memorandum of.