kumatage {koo-mah-TAHZH. Noun.} According to Bowditch’s Navigator (24th Edition, 1854), a kumatage is “a bright appearance in the horizon, under the sun or moon, arising from the reflected light of those bodies from the small rippling waves on the surface of the water.”
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– Endangered Words : A Collection of Rare Gems for Book Lovers by Simon Hertnon.