Here is the information you could retrieve from the on- line OED under this heading.

OED FULL ENTRY DISPLAY


OCHLOCRACY

ochlocracy oklo'krasi. Also 6-7 -tie, -ty, -cie, -sie. a. Fr. ochlocratie (1568 in Hatz.-Darm.), a. Gr. oxlokrati'a mob-rule, f. o'xlo-j a crowd + -krati'a rule, authority: see -cracy. Also in 16th c. in the Latin form ochlocratia. Government by the mob or lowest of the people; mob-rule.