ARCHITECTONICUS A Greek word, adopted in Latin, signifying belonging to architecture. Thus, Vitruvius writes, rationes architectonicae, meaning the rules of architecture. But as Architecton signifies a Master Builder, the Grand Lodge of Scotland, in some Latin inscriptions, has used the word architectonicus, to denote Masonic or relating to Freemasonry. In the inscription on the corner-stone of the Royal Exchange of Edinburgh, we find fratres architectonici used for Freemasons; and in the Grand Lodge diplomas, a Lodge is called societas architectonica; but the usage of the word in this sense has not been generally adopted.