Etymology
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asphyxiate (v.)

1818, "to suffocate" (someone or something), "produce asphyxia," from asphyxia in its transferred sense + -ate (2). Intransitive sense by 1882. Related: Asphyxiated; asphyxiating.

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asphyxiation (n.)

"act of causing asphyxia," 1849, noun of action from asphyxiate (v.).

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