{ Con"gou (?), Con"go (?) }, n. [Chin. kung-foo labor.] Black tea, of higher grade (finer leaf and less dusty) than the present bohea. See Tea.

Of black teas, the great mass is called Congou, or the "well worked", a name which took the place of the Bohea of 150 years ago, and is now itself giving way to the term "English breakfast tea."
S. W. Williams.