Words with the Greek root crac?

There is no Greek root "crac." You might be thinking of the Greek root krat, which means "rule" or "power."

Here are some words derived from the Greek root krat:

* Democracy: Rule by the people

* Autocracy: Rule by one person

* Aristocracy: Rule by the best or the nobles

* Bureaucracy: Rule by officials

* Theocracy: Rule by religious leaders

* Monocracy: Rule by one person

* Oligarchy: Rule by a small group of people

* Plutocracy: Rule by the wealthy

If you're thinking of a different root, please provide more context or examples.