In a manner that is autarkical; with economic self-sufficiency or in a way characterized by autarky.
From autarkical + -ly adverbial suffix, though most speakers would use 'autarkically' from autarkic directly.
This quadruple-layered suffix word (autark-ic-al-ly) is grammatically sound but so unwieldy that it practically never appears in real writing—a cautionary tale about English's suffix-stacking abilities.
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