The act of departing or withdrawing (an extremely rare or obsolete term).
From Latin decessio, from decedere (to depart, die). Related to decess, this noun form emphasizes the action of leaving or withdrawing.
This word almost never appears in modern writing, but old travel diaries and philosophical texts used 'decession' to describe retreating armies or the soul's departure from the body—it was poetic once.
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