ochlocracy (n.) Look up ochlocracy at Dictionary.com
"government by the rabble," 1580s, from French ochlocratie (1560s), from Greek okhlokratia (Polybius) "mob rule," the lowest grade of democracy, from kratos "rule, power, strength" (see -cracy) + okhlos "mob, populace," probably literally "moving mass," from PIE *wogh-lo-, suffixed form of root *wegh- "to go, move." For sense development, compare mob (n.). Related: Ochlocratic; ochlocratical. Greek also had okhlagogos "mob-leader, ochlagogue."