Tirones- This is the term used for recruits enlisted in the Legions who have actually begun training. This is a distinctly different class than probatio, and assumes that the recruit has actually begun the training that was required to become a member of the Legion.
Vitus- The twisted length of vine stick that was a symbol of the Roman Centurion. Even out of uniform, Centurions would carry the vitus to let others know their status.