An advent is the arrival of something important. The advent of the railway.
It takes of after it and is used of inventions and eras rather than of people. With a capital letter Advent is the season before Christmas.
1nounadventThe arrival of something important.
“The advent of the motor car emptied every coaching inn on the road.”
advent is an arrival.
Latin adventus means an arrival, from advenire, to come to.
Proto-Indo-European
*gʷem-
Latin
adventus
English, today
advent
Borrowed from Latin adventus. Borrowed from Latin adventus (“arrival, approach”).
Etymology from Wiktionary, CC BY-SA