the.com/accession

The paperwork moment a thing stops being yours and starts being history's.

means The formal act of taking up a position, title, or power — or of an item officially entering a collection or archive.

from From Latin accessio, 'a coming near, an addition,' built from accedere — ad- 'to' plus cedere 'to go, to yield.' The same root that gives us 'cede' and 'concede,' so an accession was literally a 'going toward' or joining: a king going toward the throne, an object going into a museum's keeping.

museum sense
the official birth certificate of an object's ownership
eu sense
joining the club after decades of homework and vetoes
royal sense
inheriting a job you can't quit or interview for
etymology
from acceding, literally coming toward or approaching
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