Origins
The word 'advent' entered English before 1100 CE, borrowed from Latin 'adventus' (an arrival, a coming) through Old French. The Latin noun derives from the verb 'advenīre' (to come to, to arrive at), composed of 'ad-' (to, toward) and 'venīre' (to come). The deeper root is Proto-Indo-European *gʷem-, meaning 'to come' or 'to go,' one of the most basic motion verbs in the ancient language.
The PIE root *gʷem- split dramatically as it descended into different language branches. In Latin, the labiovelar *gʷ became 'v,' producing 'venīre' (to come). In Greek, the same sound became 'b,' producing 'baínein' (to go, to step) — the source of 'basis,' 'acrobat,' and 'diabetes.' In the Germanic languages, *gʷ became 'k' (later 'c' in English spelling), producing Old English 'cuman' and modern English 'come.' This means that 'come' and 'advent' are cognates — the native English word and the Latin borrowing both mean 'to arrive,' descended from the same PIE root, though their forms have diverged beyond easy recognition.
The earliest English use of 'Advent' was as a liturgical term. In the Christian calendar, Advent (from Latin 'Adventus Domini,' the Coming of the Lord) is the four-week period before Christmas, celebrating the anticipated arrival of Christ. The season has been observed since at least the fourth century. Advent calendars, Advent wreaths, and Advent candles are all associated with this period of preparation and anticipation.
Semantic Evolution
The secular sense — the arrival of any notable person, thing, or event — developed naturally from the religious sense but gained independence by the seventeenth century. One can speak of 'the advent of the printing press,' 'the advent of the internet,' or 'the advent of democracy' without any religious connotation. In each case, the word implies an arrival that changes things — not merely a coming but a consequential coming.
Latin 'venīre' and its compounds have been extraordinarily productive in English. 'Adventure' (from Old French 'aventure,' from Latin 'adventūra,' literally 'a thing about to come' — originally meaning 'chance' or 'fortune,' then shifting to 'a risky undertaking'). 'Venture' (a shortened form of 'adventure'). 'Avenue' (from French 'avenue,' a way of coming, an approach). 'Convene' (to come together). 'Revenue' (a coming back — money returning to the treasury). 'Event' (from Latin 'ēventus,' an outcome, something that comes out). 'Prevent' (to come before, hence to forestall). 'Invent' (to come upon, to find). 'Intervene' (to come between). 'Circumvent' (to come around). 'Provenance' (the coming forth — the origin of something). 'Souvenir' (from French, literally 'to come to mind' — a memory, then an object that triggers memory).
The Seventh-day Adventists, founded in the mid-nineteenth century, take their name directly from the doctrine of Christ's imminent Second Advent — his expected return. The Adventist movement grew out of the 'Great Disappointment' of 1844, when William Miller's prediction of Christ's return failed to materialize, but the expectation of an advent persisted among his followers.
Legacy
The word 'advent' thus encodes both waiting and arrival — the tension between anticipation and fulfillment. Whether applied to Christ's coming, a technological revolution, or the change of seasons, the word carries an inherent sense of significance: an advent is never merely an arrival. It is an arrival that matters.