the sixth letter (?) of the early Greek alphabet, derived from the Semitic vav and having the sound of the English w: it was replaced in the Latin alphabet by F
Origin of digammaClassical Greek ; from di-, two + gamma: so called because it resembles two gammas (?) in form
A letter occurring in certain early forms of Greek and transliterated in English as w.
Origin of digammaLatin, from Greek : di-, two; see di–1 + gamma, gamma (because its shape resembles two gammas); see gamma.