the.com/usher

Seats strangers in the dark so couples can hold hands without falling down stairs.

means Someone who leads people to where they need to go, or formally introduces something new.

from From French 'ussier,' tracing back to Latin 'ostiarius' — a doorkeeper, from 'ostium' meaning door or entrance. The usher started out literally guarding the threshold, the one who decided who got to pass through the door at all, before the job softened into merely showing you to your seat.

job origin
from latin ostiarius meaning doorkeeper
also means
to guide in a new era
theater role
predates electric lighting by centuries
royal version
usher of the black rod guards parliament
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