keptnote
nounUK /ˈkɛpt.nəʊt/
US /ˈkɛpt.noʊt/
A note that you save and keep so you can read it later.
She wrote a keptnote about the meeting so she would not forget the plan.
OTHER MEANINGS
2. A short written message that someone stores away on purpose.
He left a keptnote in the drawer for his sister.
3. A saved digital note kept in an app or file.
I added a keptnote to my phone about the shopping list.
4. A brief record kept for future reference.
The teacher made a keptnote of each student's progress.