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 a voiceless velar fricative similar to Modern German (kh), as in doch: in Modern English orthography it has been replaced by gh, which either is silent, as in though, or represents the sound (f), as in cough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

Etymology: ME