In ordinary English, death is the end of a living body: the event of dying, the condition of being dead, and sometimes the thing that causes either. We also stretch it to cover the collapse of an institution, the fading of a sound, or a personified figure with a scythe. The core has barely moved since the earliest English records. What did change is the company the noun keeps, especially the everyday verb that now sits beside it.
A native Germanic noun
English did not borrow this word. It inherited it. Old English already had dēaþ, also written deaþ, a masculine noun covering the stopping of life, the fact of dying, the state of being dead, and the cause of someone’s dying. In the plural it could even mean the dead themselves, the departed as ghosts. The Oxford English Dictionary places the first known use in the Old English period, before 1150. Middle English kept the word as deth, deeth, and close spellings; an older written form deth later survived only as an obsolete variant.
That lineage is West Germanic and, behind that, Common Germanic. Reconstructed Proto-Germanic dauþuz, reached in English through Proto-West Germanic dauþu, is the ancestor shared with Old Saxon doth, Old Frisian dath, Dutch dood, Old High German tōd and modern German Tod, Old Norse dauði, Danish and Swedish død, and Gothic dauþus. The match across branches is tight enough that no serious account treats English death as a loan.
The suffix that names a process
The form is not a bare root sitting on its own. Germanic built it from a verbal stem dau-, the same stem that yields the reconstructed verb dawjaną, to die, plus a suffix þuz that made abstract nouns of act, process, or condition. English still shows that suffix, worn down, in other old nouns of process such as birth and growth. The related adjective dead comes from a parallel formation, Proto-Germanic daudaz, Old English dēad. Dead is not a spin-off of the modern verb die. It is a sibling of the noun, formed on the same stem with a different ending.
Deeper than Germanic the trail is less sure. Many handbooks attach the stem to a Proto-Indo-European root reconstructed as dheu- or dhew-, to die or to pass away, with a derived noun of the type dhowtus. That is a reasonable comparison, not a closed case. Some specialists prefer a link to a root meaning to end, citing Hittite material; others leave the Indo-European step marked as possible rather than proven. The Germanic family is solid. The step before it is a hypothesis.
Senses that grew around a stable core
The basic meaning did not need to be reinvented. What English added were extensions and cultural uses, most of them still recognizably tied to the end of life.
From the late twelfth century the word could name death as a person, later pictured as a skeleton, the figure of mortality rather than only the event. By the late fourteenth century it could mean the end of something that had never been alive, and, in the same century, a great dying, a plague. The label Black Death for the medieval pandemic is later still. Scandinavian chronicles used a comparable phrase in the sixteenth century for an Icelandic outbreak of 1402–3; English took the phrase up from continental usage in the eighteenth century and applied it back to the fourteenth-century plague. The exact force of black in that name is not settled.
Idioms piled up without moving the noun’s center. Death-throes is recorded around 1300. Death’s door, for the verge of dying, appears in the 1540s; the death’s-head as a reminder of mortality in the 1590s. To be the death of someone is already in Shakespeare at the end of the sixteenth century. Intensifying to death, as in hate something to death, is seventeenth-century; earlier English could say to dead. Modern compounds such as death knell (1814), death penalty (1844), death rate (1859), and death row (1912) show the word moving into law, statistics, and prison talk while still meaning the same thing.
Old English already used dēaþ for a cause of dying as well as for the event, so phrases that treat a person or a habit as someone’s death are continuations, not inventions. The figurative end of a custom or a sound is younger, but it follows a path many languages take: the word for the end of life becomes a word for an ending in general.
The missing native verb
Here is the twist that makes the history of the noun sharper. English kept death and dead from Old English. It did not clearly keep a matching inherited verb meaning to die. Handbooks sometimes reconstruct an Old English diegan or dīegan from the same Germanic stem, but that verb is not in any surviving text. Speakers used other verbs: steorfan, which narrowed into starve; sweltan, which survives mainly in swelter; wesan dead, become dead; forðgan; and other softenings.
The ordinary modern verb die is first securely recorded around 1175, in Middle English. The OED treats it as a borrowing from early Scandinavian, matching Old Norse deyja. Cognate verbs existed on the Continent — Old Saxon doian, Old High German touwen — but they faded there too, which is why German now pairs Tod with sterben, a relative of starve. Whether English once had the inherited verb and lost it, or never kept it in the written language, is still argued. On the best current evidence, the everyday verb is a Norse arrival, while the noun is home-grown.
That pairing is unusual. Languages rarely import a word for so central an act. Etymologists often explain the exception as taboo replacement: speakers swap the blunt verb while leaving the noun in place. Superstition need not be the whole cause. A northern dialect form reinforced by Norse, then spreading south in early Middle English, would look much the same. Either way, the split is visible on the page. Starve kept a dying-sense long enough to mean die of hunger, and even die of cold in some later English; German sterben never left the general meaning. Swelter kept heat and left dying behind. Die filled the gap.
The origin of the word death is native Germanic. The noun has been in the language since before the Conquest, built as a process-word on a Germanic dying-stem, cognate with German Tod and Dutch dood. The fact it names has not required a new label. The verb beside it has.