Righting the Mother Tongue Quotes

“The gh at the end of many modern words, however, like dough, cough, and trough, is actually an artifact not of Dutch orthographic tendencies, but of Norman distaste for the Middle English letter yogh, which looked like this: 3. Yogh fell out of use around the end of the fifteenth century.”
― David Wolman, Righting the Mother Tongue: From Olde English to Email, the Tangled Story of English Spelling