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Webster 1913 Edition

Digamma

Di-gam′ma

,
Noun.
[Gr. [GREEK]; [GREEK] = [GREEK] twice +
γάμμα
the letter Γ. So called because it resembled two
gammas
placed one above the other.]
(Gr. Gram.)
A letter ([GREEK], [GREEK]) of the Greek alphabet, which early fell into disuse.

Webster 1828 Edition

Digamma

DIGAMMA

,
Noun.
[Gr., double gamma.] The name of F, most absurdly given to that letter, when first invented or used by the Eolians, on account of its figure. A letter should be named from its sound, and not from its shape. The letter is ef.

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