the.com/officiator

The licensed human who turns two nervous people into legally entangled ones.

means A person who formally conducts a ceremony or rite, especially a wedding, and makes it official.

from From Latin officium, meaning duty or service, via officiareto perform a sacred functionlanding on the one who does the official part.

Word swapOfficiant is the far more common term.
No clergy requiredFriends ordained online now legally marry couples.
Beyond weddingsAlso presides over funerals, oaths, and rites.
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