Merriam-Webster's Collegiate® Dictionary, 11th Edition
CALYPSO
I. noun
Etymology: Latin, from Greek Kalypsō
Date: 14th century
a sea nymph in Homer's Odyssey who keeps Odysseus seven years on the island of Ogygia, a bulbous bog orchid ( Calypso bulbosa ) of northern regions bearing a single white to purplish flower,
II. noun (plural -sos or -soes)
Etymology: Trinidad English, alteration of kaiso, perhaps ultimately of African origin; akin to eastern Caribbean English caliso, cariso satirical song
Date: 1900
a style of music originating in the West Indies, marked by lively duple meter, and having lyrics that are often improvised and usually satirize local personalities and events, calypsonian noun or adjective