The Collaborative International Dictionary of English v.0.48:

Pekoe \Pek"oe\, n. [Chin. pih-hoau: cf. F. peko["e]]
   A kind of black tea. [Written also pecco.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Pecco \Pec"co\, n.
   See Pekoe.
   [1913 Webster]