Iota adscript (Greek προσγεγραμμένη) in Greek polytonic orthography a term for the iota when written separately from the long vowel preceding it in diphthongs, as opposed to combining it as a small vertical stroke beneath the vowel, known as the iota subscript (ὑπογεγραμμένη). The iota subscript was created when the iota was reintroduced in the Byzantine period, to correct the loss of ι from copies of earlier manuscripts, but was placed below rather than beside the vowel to reflect the fact that it was not, by then, pronounced. This is still the most common convention today, although over the past few decades, many editors have preferred to reinstate the iota as an adscript. Others take a mixed approach, using the adscript for capitals, but the subscript for lower case letters. Polytonic orthography for Greek uses a variety of diacritics (πολύ = many + τόνος = accent) to represent aspects of Ancient Greek pronunciation. ... For programming language, see Iota and Jot. ... Note: This page contains IPA phonetic symbols in Unicode. ... In phonetics, a diphthong (in Greek δίφθογγος) is a vowel combination usually involving a quick but smooth movement from one vowel to another, often interpreted by listeners as a single vowel sound or phoneme. ... Iota subscript (Greek ) in Greek polytonic orthography is a way of writing the letter iota as a small vertical stroke beneath a vowel. ... Majuscules or capital letters (in the Roman alphabet: A, B, C, ...) are one type of case in a writing system. ... Minuscule, or lower case, is the smaller form (case) of letters (in the Roman alphabet: a, b, c, ...). Originally alphabets were written entirely in majuscule (capital) letters which were spaced between well-defined upper and lower bounds. ...