U+1FB7 "ᾷ" Greek Small Letter Alpha with Perispomeni and Ypogegrammeni Unicode Character

U+1FB7 "ᾷ" Greek Small Letter Alpha with Perispomeni and Ypogegrammeni is a precomposed character used in polytonic Greek orthography, combining the Greek small letter alpha (α) with a perispomeni diacritic (a circumflex accent indicating a rising-falling pitch) and an ypogegrammeni (an iota subscript written beneath the vowel to denote a long diphthong that was pronounced with a following /i/ sound in ancient Greek). This character historically appears in words where the alpha is long and carries the circumflex tone, while the iota subscript marks a former final iota that became silent over time, typically in forms like the dative singular of some feminine nouns. It is encoded in Unicode primarily for compatibility with legacy character sets and for representing classical and biblical Greek texts in a single glyph.