A combination of the word "Canter", which is a term for how a
horse runs, and "Commissariat", a department in a military force in charge of supplies.
Only used as a name for a not-that-
well known writer and Garry'
s Mod community leader, which is where it gets it's context for "commissariat".
After various misspellings of "Canterissariat" as "Canterissiriat", "Canterissiriat" became the norm.
Pronounced Can't - er - iss - ear - e - at.