Factotum
Definition: an employee that does a wide range of duties
This is sort of like a “life manager” or personal assistant or majordomo. A factotum assists someone by performing whatever tasks they need.
The word is Latin for “do all.”
Why I Looked It Up
In an episode of Moonlighting, a couple introduces their servant as their “factotum.”
I probably wouldn’t have even noticed if not for the closed captioning.
Update
Added on
From The Money Kings:
The Goldmans engaged Glenway Wescott, a young writer who would later win acclaim for his novels and essays, as Henry’s companion and factotum.