Gaf

Gaf, or gāf, may be the name of four different Perso-Arabic letters, all representing /ɡ/. They are all forms of the letter kāf, with additional diacritics, such as dots and lines. There are three forms, each used in different places:

گ‎ is based on kāf with an additional line. It is rarely used in Arabic itself, but may be used to represent the sound /ɡ/ when writing other languages. It is frequently used in Persian, Uyghur, Urdu and Kurdish and is one of four Perso-Arabic letters not found in Arabic.

ݣ‎ can also be used to represent /ɡ/ in Morocco, occidental Algeria and many Berber languages.

ݢ‎ is derived from a variant form (ک‎) of kāf with the addition of a dot. It is not used in the Arabic language itself, but is used in the Jawi script of Malay to represent a voiced velar stop /ɡ/. Unicode includes two forms on this letter: one based on the standard Arabic kāf, ك‎, and one based on the variant form ک‎. The latter is the preferred form.

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