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1.
Verb (from ancient Spartan social terrminology): To reduce a population of formerly free peoples to serfdom, usually by means of military force, invasion, occupation, or annexation under political duress.
"Although not overtly stated in public, from the beginning the Nazi policy for the Eastern Occupied Territories was to helotize all Slavic peoples who were not immediately selected for extermination."
by Speedog December 28, 2009