deich An Meitheamh, Daerdaoin ( 10 June, Thursday), or in Manx, jeih Mean Souree, Jerdain In 1549 the Prayer Book Rebellion led by Henry Arundell broke out in Cornwall against the religious edicts of King Henry VIII of England. Manx Gaelic is similiar to Irish in pronunciation but not necessarily in spelling. Take the word for "ten". In Irsih it is spelled "deich" and pronounced "Jeh". In Manx it is spelled "jeih" and pronounced "jeh". In Irish and Scottish the letter "d" depending on what vowels it is combined with, gets a "j" sound. Other times it gets a "d" sound.