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yogh

noun

a letter of the Middle English alphabet, Ȝ, representing:
  1. a voiceless velar fricative similar to Modern German (kh), as in doch: in Modern English orthography it has been replaced by gh, which either is silent, as in though, or represents the sound (f), as in cough
  2. a voiced palatal fricative: in Modern English orthography, y, representing (y) as in yes

See yogh in American Heritage Dictionary 4

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