U+03B9 "ι" Greek Small Letter Iota Unicode Character

U+03B9 "ι" Greek Small Letter Iota is the ninth letter of the Greek alphabet and represents the vowel sound /i/ in both Ancient and Modern Greek, where it serves as a common grammatical element and often appears in diphthongs. In the history of writing, the iota is also famously associated with the term "jot" derived from its minuscule form, and it features as a subscript in certain Ancient Greek texts to indicate a long vowel. Within Unicode, it is encoded in the Greek and Coptic block and is visually distinct from the Latin letter "i" due to its lack of a dot above, making it important for accurate digital representation of Greek script in linguistics, mathematics, and theology.