A group of words such as compute, repute, depute sprang from the Latin putare, which meant (among other things) to estimate, to think, to count among. From this came deputatus, to select, to appoint. The idea was that from a number of persons one was told off for a special duty, hence our word "deputy." A deputation is an instrument appointing some man or group of men to act for others officially. Our Deputy Grand Master is thus set apart to act in the place of the Grand Master on need, and a District Deputy Grand Master is so called because he is appointed or told off by the Grand Master to act as his personal representative in a District.