Mestrice des Macons

Said to be the name used in Gaul for the organization of builders, including masons and architects. (See "The History of Freemasonry" by Mackey page x)

Also see Steinaetzen 

Could this term, "Mestrice des Macon", have evolved into the "Mysteries of Masonry" over time and as a result of various translations from one language to another?