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Hmong
A Hmong-Mien language spoken in southern China, Vietnam, Laos, and the diaspora — about 4 million speakers, with major communities in the United States after Indochina wars.
You're looking for 1-syllable languages containing M — here are 3 matches, each linked to a full profile.
List of 1-syllable Languages that contain M
2
Khmer
An Austroasiatic language and the official tongue of Cambodia — written in a Brahmic-derived script and notable for not being tonal, unlike its Southeast Asian neighbors.
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Manx
The Goidelic Celtic language of the Isle of Man — extinct in 1974 with the death of its last native speaker, then revived from records and is now learnt anew.
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