The act or process of consecrating someone as a bishop or ordaining them to the episcopacy.
From episcopate + -ion (action or process). The noun form names the ceremonial action of making someone a bishop.
The ceremony of episcopation involved incredibly complex ritual—there were specific prayers, laying on of hands, and ancient formulas that had to be performed correctly, or theologians argued the whole thing might be invalid.
Complete word intelligence in one call. Free tier — 50 lookups/day.