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digamma

noun
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di·​gam·​ma | \ dīˈgamə, ˈdīˌg- \

Definition of digamma

1 : a letter of the original Greek alphabet representing a sound approximately that of English w which early fell into disuse except in writing the western dialects and in numerical notation where it represented the number 6

— called also vau

—symbol F, ϝ
2 : the sound represented by the letter ϝ

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History and Etymology for digamma

Latin, from Greek, from di- + gamma; from its resemblance to two capital gammas placed on top of each other

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“Digamma.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/digamma. Accessed 7 December 2019.

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