Origin of ostiaryClassical Latin ostiarius from ostium, door, entrance from os, mouth: see oral
- Roman Catholic Church One who is ordained in the lowest of the former minor orders.
- A church doorkeeper.
Origin of ostiaryMiddle English hostiary from Latin ōstiārius doorkeeper from ōstium door from ōs mouth ; see ōs- in Indo-European roots.
Part or all of this entry has been imported from the 1913 edition of Webster's Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.