Pu-erh
/puːˈɛː/noun
More fully Pu-erh tea. Any of several varieties of tea from the Yunnan province of China that are aged and fermented to produce a strong, earthy flavour.
Origin
Late 19th century. From Puer (Chinese Pǔ'ěr; also transliterated Pu-erh, etc.), the name of a town in the Yunnan province of China, where the tea was first produced. With Pu-erh tea compare Chinese pǔ'ěrchá in same sense.