What does euthanasia mean?
Euthanasia is the deliberate ending of a life in order to relieve suffering, most often applied to people with incurable illnesses or irreversible conditions and sometimes to animals. Derived from Greek roots meaning 'good death', the word entered English in the early seventeenth century but has taken on its modern medical and legal significance mainly since the nineteenth century. Today it sits at the centre of intense ethical, legal, and political debate: jurisdictions such as the Netherlands, Belgium, Canada, and several Australian states permit some form of voluntary euthanasia or assisted dying under strict safeguards, while many others prohibit it outright. Writers distinguish active forms, involving a direct lethal act, from passive ones that withhold life-sustaining treatment, and voluntary forms, requested by the patient, from involuntary ones. Because of the word's emotional charge, careful speakers often choose narrower phrases such as 'assisted dying' or 'physician-assisted death'.
The painless killing of a patient suffering from an incurable and painful disease or an irreversible coma; the practice of ending a life to relieve suffering.
"The court ruled that euthanasia could be permitted where the patient had given clear, repeated consent."
Often qualified as voluntary, involuntary, active, or passive depending on consent and method.
The humane killing of an animal to end its suffering, commonly referred to as putting the animal down.
"The shelter performed euthanasia only when an animal's condition was untreatable."
In everyday speech, 'put down' or 'put to sleep' is far more common for animals.
Rarely used; 'euthanasia' normally functions as an uncountable mass noun. A plural occasionally appears in academic writing referring to distinct types or instances of the practice.
"The report compared the legal frameworks governing different euthanasias across Europe."
The word literally means 'good death' in Greek — a term coined over two millennia before any modern parliament debated legalising it.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of euthanasia
Euthanasia comes from Greek euthanasia, formed from eu- ('good' or 'well') plus thanatos ('death'), so it literally means 'good or easy death'. It entered English in the early seventeenth century, initially carrying the broader sense of a peaceful, happy death. Its modern meaning — deliberately hastening death to relieve suffering — developed later, becoming prominent in medical and ethical debate from the nineteenth century onward. The same Greek elements survive in related words: eu- appears in eulogy, euphoria, and euphemism, while thanatos-related terms are rare in English outside technical contexts.
How euthanasia is actually used
Register is formal/medical-legal. The term carries strong ethical and political weight, so writers often prefer euphemistic or precise alternatives such as 'assisted dying', 'aid in dying', 'medically assisted death', or 'end-of-life choice'. Distinguish active euthanasia (a deliberate lethal act) from passive euthanasia (withholding life-sustaining treatment), and voluntary (patient-consented) from involuntary. Applied to animals, 'put down' or 'humane destruction' are common everyday alternatives.
Easily confused with euthanasia
Euphoria means an intense feeling of happiness or well-being, whereas euthanasia refers to deliberately ending a life to relieve suffering — the two share only the Greek prefix eu- ('good').
Eugenics is the practice of attempting to improve the genetic quality of a population, while euthanasia is the deliberate ending of a life to relieve suffering.