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Middle French, from Late Latin defoedatus (past participle of defoedare to pollute, from Latin de- + foedare to make ugly or filthy, from foedus ugly, filthy) + Middle French -ion
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“Defedation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/defedation. Accessed 17 Aug. 2022.
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