ۀ is a letter of the Pashto and Persian languages consisting of hāʾ with a hamza above.
Usage In the Pashto alphabet, it is the fortieth letter, known as Kajira He, where it represents the vowel /ə/ and is transliterated ⟨ë⟩. In Persian, it is not considered a distinct letter of the alphabet but is used when marking ezafe on a word ending in ـه ⟨…e⟩ [e], thus yielding ـهٔ ⟨…e-ye⟩ [eje]. According to one source, this is not actually a hamza but rather a development of the letter ی ye as a diacritic. In both written Pashto and Persian, it only appears in the final position:
References
