Language: Burmese
Source: Period account
Dha hmyuang is an alternative spelling for da̱hmjaun (ဓားမြှောင်). It is the name for a Burmese dagger.1
See main glossary article; da̱hmjaun.

A fine Burmese da̱hmjaun with carved ivory hilt.
Sold by Mandarin Mansion in 2020.
Sources
1. E.N. Bell I.C.S.; A Monograph on Iron and Steel Work in Burma. Rangoon, Superintendent, Government Printing Burma, 1907. Also see Robert Hales; Islamic and Oriental Arms and Armour: A Lifetime's Passion, England, 2013. Pages 148-149.