OSTIARY
doorkeeper, doorman, door guard, hall porter, porter, gatekeeper, ostiary
(noun) someone who guards an entrance
doorkeeper, ostiary, ostiarius
(noun) the lowest of the minor Holy Orders in the unreformed Western Church but now suppressed by the Roman Catholic Church
Source: WordNet® 3.1
Etymology
Noun
ostiary (plural ostiaries)
The mouth of a river; an estuary.
One who keeps the door, especially the door of a church; a porter.
Source: Wiktionary
Os"ti*a*ry, n.; pl. -ries. Etym: [L. ostium door, entrance. See
Usher.]
1. The mouth of a river; an estuary. [R.] Sir T. Browne.
2. One who keeps the door, especially the door of a church; a porter.
N. Bacon.
Source: Webster’s Unabridged Dictionary 1913 Edition