Diminish See also Abate; Decrease tale of the bricks … ye shall not diminish ought thereof, Ex. 5:8. not add unto the word … neither shall ye diminish, Deut. 4:2. thou shalt not add thereto, nor diminish, Deut. 12:32. diminish not a word, Jer. 26:2. diminishing of them the riches of the Gentiles, Rom. 11:12.