Asphyxiation, typically resulting in death; asphyxia(noun)
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Use "asphyxy" in a sentence
"Can there be a more mortal, poisonous consumption and asphyxy of the mind than this decline and extinction of all reverence?"
"Bavius Blunderbore, Esq., which were of "a low and moderate sort," cause you to giggle yourself wellnigh into an asphyxy, -- calf and coxcomb as he was?"
"Josephus, Valerius Maximus, psychological and medical authorities have been searched and appealed to for examples of such apparent resurrections from a trance or asphyxy, especially on the third day, which is supposed to be a turning-point for life or putrefaction."