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]WordNet (r) 3.0 (2006):
pekoe n 1: a superior grade of black tea; grown in India and Sri Lanka and Java [syn: orange pekoe, pekoe]