Historically, it is derived from a handwritten form of the small Latin letter q around 1900. The majuscule is then based on the minuscule. Its use for [ɣ] stems from the linguistic tradition of representing such sounds (and similar ones) by q in Turkic languages and in transcriptions of Arabic or Persian (compare kaf and qaf).[3]
In Unicode, the majuscule Ƣ is encoded in the Latin Extended-B block at U+01A2 and the minuscule ƣ is encoded at U+01A3.[4] The assigned names, "LATIN CAPITAL LETTER OI" and "LATIN SMALL LETTER OI" respectively, are acknowledged by the Unicode Consortium to be mistakes, as gha is unrelated to the letters O and I.[5] The Unicode Consortium therefore has provided the character name aliases "LATIN CAPITAL LETTER GHA" and "LATIN SMALL LETTER GHA".[4]
In popular culture
Thomas Pynchon's novel Gravity's Rainbow features an episode purporting to be the story of a Soviet officer, Tchitcherine, dispatched to Kirghizstan to serve on a committee tasked with devising an alphabet for the Kyrgyz language. Tchitcherine's particular contribution is the invention of the letter Ƣ, which is thus perhaps the only obsolete letter of a Central Asian language that may be familiar to the non-specialist, English-reading public through a widely circulated novel.
