/mɔːrt/
[noun] A note sounded on a hunting horn to announce that a deer or other hunted animal has been killed; also used in older English to mean death itself.
The hunting horn note called 'mort' is literally a musical announcement of death, borrowed straight from the Old French word for dying.
The word 'mort' comes directly from Old French 'mort', meaning death or dead, which itself descended from Latin 'mors' (genitive 'mortis'), the ancient Latin word for death. This Latin root is one of the oldest and most productive in the entire Indo-European family, stretching back to the Proto-Indo-European root *mer-, meaning to die or to harm, which also gave Sanskrit 'mṛtyu' (death) and Greek 'brotos' (mortal). The chain of transmission runs cleanly: Proto-Indo-European *mer- → Latin mors/mortis → Old French mort → Middle English mort.
In English, 'mort' entered the language in the 13th century, carried in by the powerful wave of Old French vocabulary that followed the Norman Conquest of 1066. For several centuries, it was used simply to mean death, appearing in poetry and formal writing. Over time, however, as the English language gradually preferred the word 'death' (from Old English 'dēaþ') for everyday use, 'mort' retreated into a more specialised corner of the language.
Its most enduring use became the language of the hunt. In the great aristocratic tradition of deer hunting, a series of horn calls were used to communicate across forests and fields. The 'mort' was the specific call blown on a hunting horn at the moment an animal — usually a deer — was killed. This was not mere ceremony; it was a practical signal telling huntsmen, hounds, and servants spread across the wood that the chase was over. The word fit perfectly because it was, quite literally, a call of death.
The Latin root 'mortis' was extraordinarily fertile in English, producing a large family of related words through different routes. Latin 'mortalis' → Old French 'mortel' → English 'mortal'; Latin 'mortuus' (dead) → Old French 'mortuaire' → English 'mortuary'; Latin 'mordere' (to bite, a related sense of harm) influenced paths toward 'remorse'. Perhaps most fascinatingly, the financial term 'mortgage' carries the same root: Old French 'mort gage' literally meant 'dead pledge' — a debt that was 'dead' either when it was paid off or when the borrower failed to pay and the property was forfeit. So every time someone signs a mortgage, they are signing a document whose name whispers of death.
Today, 'mort' is largely an archaic or specialist term, found in historical accounts of hunting, in literature set in earlier centuries, or in discussions of horn-calling traditions. Yet it remains quietly embedded in the English language through its many relatives, a small word that opens into a vast network of meanings — mortality, mortal danger, post-mortem examinations — all circling the same ancient human fear that the Proto-Indo-European speakers tried to name thousands of years ago.