usher
Pronunciation: /ˈʌʃə/
noun
- 1a person who shows people to their seats, especially in a cinema or theatre or at a wedding.
- British a person employed to walk before a person of high rank on special occasions.
verb

Origin:
late Middle English (denoting a doorkeeper): from Anglo-Norman French usser, from medieval Latin ustiarius, from Latin ostiarius, from ostium 'door'