[3] Iota represents the close front unrounded vowel IPA: [i].
Where the first element was long, the iota was lost in pronunciation at an early date, and was written in polytonic orthography as iota subscript, in other words as a very small ι under the main vowel.
[4] The word is used in a common English phrase, "not one iota", meaning "not the slightest amount".
[citation needed] The English word jot derives from iota.
[5] The German, Polish, Portuguese, and Spanish name for the letter J (Jot / jota) is derived from iota.