U+10B4F "𐭏" Inscriptional Parthian Letter Ayin Unicode Character

U+10B4F "𐭏" Inscriptional Parthian Letter Ayin is a script symbol from the Inscriptional Parthian block, representing the twenty second letter of the Parthian alphabet, which was used for writing the Middle Iranian language of the Parthian Empire from around the 2nd century BCE to the 3rd century CE. This letter corresponds to the Semitic ayin and denotes a voiced pharyngeal fricative sound or a glottal stop, depending on the phonetic context, and it appears primarily in monumental inscriptions, such as those found at the ancient city of Nisa or in the trilingual inscriptions of the Sasanian kings. Derived from the Imperial Aramaic script, its shape resembles a simple open loop or circle, and it is encoded in the Unicode Standard to support the digital preservation and scholarly study of this historical writing system.