Word Study
spinnaker
CIDE DICTIONARY
spinnaker, n.
A large triangular sail set upon a boom, -- used when running before the wind. [1913 Webster]
OXFORD DICTIONARY
spinnaker, n. a large triangular sail carried opposite the mainsail of a racing-yacht running before the wind.
Etymology
fanciful f. Sphinx, name of yacht first using it, perh. after spanker
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