Dirigisme and Helotism

Here are two bona fide but arcane English words that soon should be making a popular comeback, considering the political tilt of the times:

Dirigisme: (noun) economic planning and control by the state; also, state control of social matters.

Helotism: (noun) a system under which a nominally free social class or a religious, national, or racial minority is permanently oppressed and degraded.