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," perhaps literally "moving mass," from PIE *wogh-lo-, from root *wegh- "to go, transport" in a vehicle (see weigh). For sense development, compare mob (n.). Related: Ochlocratic; ochlocratical. Greek also had okhlagogos "mob-leader, ochlagogue."