: the 9th letter of the Greek alphabet see Alphabet Table
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Iota and Jot
The words iota and jot share a lot more than just a common meaning—both ultimately derive from the same word. When Latin scholars transcribed the Greek name of the ninth letter of the Greek alphabet, they spelled it as either iota or jota (the letters i and j were simply variants of each other), and these spellings eventually passed into English as iota and jot. Since the Greek letter iota is the smallest letter of its alphabet, both words eventually came to be used in reference to very small things.
there's not an iota of doubt regarding the defendant's guilt
Recent Examples on the WebMalaparte’s descriptions of modern war have not aged an iota and might well have been written for today’s conflagration in Ukraine. Tobias Grey, WSJ, 9 Sep. 2022 Yang has remained consistent in his approach, simplifying complex financial topics without an iota of superiority in quick, simple videos. Jane Thier, Fortune, 7 Aug. 2022 If not, then he’ll be tossed overboard without an iota of regret, at least not by the top leadership: Rupert Murdoch and his increasingly important son, Lachlan. Margaret Sullivan, Washington Post, 1 Aug. 2022 Shephard’s slyest gag here is that Danni barely has to put an iota of effort into protecting her astronomical lie. A.a. Dowd, Rolling Stone, 27 July 2022 None of these events should have mattered one iota to the economy. Laurence Kotlikoff, Forbes, 11 July 2022 Plus there isn’t one iota, even one molecule of weird in your purr strategy. Carolyn Hax, Washington Post, 9 July 2022 If the statue changes that even an iota — a passer-by here and there, walking off dinner before a trip back through the tunnel — Davis will count it as progress. Neal Rubin, Detroit Free Press, 12 May 2022 Yet, despite this extraordinary evolution, marketing, in fact has not changed by one iota. Avi Dan, Forbes, 13 Apr. 2022 See More
Word History
Etymology
Latin, from Greek iōta, of Semitic origin; akin to Hebrew yōdh yod