Summary: The Greek root word *crat* means "rule," and the English suffix *-cracy* means "rule by." This Greek root and suffix is the word origin of a good number of English vocabulary words, including the familiar terms demo[*crat*] and demo[*cracy*]. The Greek root word *crat* and suffix *-cracy* are easily recalled through these two English words, "demo[*cracy*]" meaning "rule by" the people, and "demo[*crat*]" being someone who specifically supports "rule" by the people.
