U+1E125 Nyiakeng Puachue Hmong Letter Aa

The Wikipedia has the following information about this codepoint:

Nyiakeng Puachue Hmong (Hmong: 𞄐𞄦𞄲𞄤𞄎𞄫𞄰𞄚𞄧𞄲𞄤𞄔𞄬𞄱‎; RPA: Ntawv Nyiajkeeb Puajtxwm Hmoob) is an alphabet script devised for White Hmong and Green Hmong in the 1980s by Reverend Chervang Kong for use within his United Christians Liberty Evangelical Church. The church, which moved around California, Minnesota, Wisconsin, North Carolina, Colorado, and many other states, has used the script in printed material and videos. It is reported to have some use in Laos, Thailand, Vietnam, France, and Australia.

The script bears strong resemblance to Thai script in structure and form and characters inspired from the Hebrew alphabet, although the characters themselves are different. It contains 36 consonant characters, 9 vowel characters, and 7 combining tone characters. There are also 5 characters for determinatives used to indicate that the preceding noun is the name of a person, place, thing, vertebrate or invertebrate animal, or a pet name for the animal. Determinatives are not pronounced, but help distinguish homophones. They appear as the last character in a word, and are not separated by a space.