This arises from the pronunciation of u as yu, and does not affect the English dialects which have not thus modified the u sound.
Me (Mother) tan (you) yu (live) ti (place) nai (where), or "Where is your mother ?"
But it is quite certain, from the historical narrative of Lo Yu, who lived in the Tang dynasty (618-906 A.D.), that tea was already used as a beverage in the 6th century, and that during the 8th century its use had become so common that a tax was levied on its consumption in the 14th year of Tih Tsung (793).
See Chung Yu Wang, Antimony (1909).
The chief tributaries of the Salween in British territory are the Nam Yu and the Nam Oi or Nam Mwe on the right bank, and the Hsipa Haw on the left.