retentor
/ˈrɛtəntɔr/Definitions
1. noun
A keeper of stores or treasures, especially a keeper of the royal treasure.
“The retentor was tasked with safeguarding the kingdom’s treasure for generations.”
2. noun
A person who keeps or retains something, especially a memory or a skill.
“The experienced teacher served as a retentor for her students, helping them retain the information.”