U+1F98 "ᾘ" Greek Capital Letter Eta with Psili and Prosgegrammeni Unicode Character

U+1F98 "ᾘ" Greek Capital Letter Eta with Psili and Prosgegrammeni is a historical and linguistic typographic symbol used in ancient and polytonic Greek writing, representing a capital Eta (Η) combined with a smooth breathing mark (Psili) and an iota subscript written as a small adscript letter (Prosgegrammeni) to the side of the main character. This specific form indicates that the vowel eta was pronounced with a smooth, unaspirated onset and was followed by a long iota sound that was once pronounced but later became silent in standard Greek, often marking a dative case or certain verb forms in Ancient Greek texts. The character is encoded in the Unicode block for Greek and Coptic and is considered a precomposed form, making it useful for accurately representing scholarly editions of classical literature or liturgical texts where such diacritical precision is required.