Asphyxiation :: Asphyxiation (n.) The act of causing asphyxia; a state of asphyxia.
Asphyxied :: Asphyxied (p. p. ) In a state of asphyxia; suffocated.
Asphyxy :: Asphyxy (n.) Apparent death, or suspended animation; the condition which results from interruption of respiration, as in suffocation or drowning, or the inhalation of irrespirable gases..