What does asphyxy mean?
Asphyxy is a rare, obsolete English noun meaning the same thing as its modern counterpart asphyxia: a dangerous lack of oxygen that leads to loss of consciousness and, if prolonged, death. It arose as an early variant rendering of the borrowed Greek-derived term and circulated in older medical and general writing before falling out of use. Today the word survives only in historical documents, antiquarian dictionaries, and occasional regional remnants, while contemporary medicine, law, and everyday speech uniformly prefer 'asphyxia' for the condition itself and 'asphyxiate' or 'asphyxiation' for related verbs and processes. Because it duplicates a word still in common circulation under a different spelling, asphyxy carries no independent meaning and offers writers nothing except potential confusion. Its chief interest lies in what it reveals about how English absorbed Greek scientific vocabulary in earlier centuries, testing several spellings before one form became fixed.
nounA rare or archaic term for asphyxia: the condition of being deprived of oxygen, resulting in unconsciousness or death.
- Deprivation of oxygen leading to unconsciousness or death; an obsolete synonym of asphyxia.
"The miners narrowly escaped asphyxy when the ventilation shaft was cleared in time."
"The coroner attributed the death to asphyxy caused by carbon monoxide fumes."
"Old medical treatises sometimes rendered suffocation as 'asphyxy', a spelling since abandoned."
Plural forms are vanishingly rare given the word's obsolescence; modern texts would not pluralize this term.
"Historical casebooks occasionally listed multiple deaths by asphyxies in the same entry."
Before 'asphyxia' won the spelling war, English briefly flirted with 'asphyxy' — a now-forgotten variant you will almost never meet outside old texts.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of asphyxy
Asphyxy derives from the same source as asphyxia: Greek 'asphyxia', from 'a-' (without) and 'sphyzein' (to throb or pulse), originally describing a pulseless state. The word entered English in the early modern period, and for a time both spellings — asphyxy and asphyxia — appeared in print before 'asphyxia' became standardized. Its closest relatives are the modern derivatives built on the same root, including asphyxiate and asphyxiation.
How asphyxy is actually used
Asphyxy is obsolete and appears only in historical or dialectal sources. Modern writing should always use 'asphyxia' or 'asphyxiation' instead; using 'asphyxy' today would read as an error rather than a deliberate stylistic choice.
Easily confused with asphyxy
Asphyxia is the standard modern medical and everyday term for oxygen deprivation, whereas asphyxy is an obsolete variant of the same word that has fallen out of use.