defedation

noun

def·​e·​da·​tion

ˌdefə̇ˈdāshən

variants or less commonly defoedation

plural -s

archaic

: pollution, defiling

Word History

Etymology

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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