auto-save
noun
Definitions
A software facility that saves an open document periodically to avoid the risk of data loss.
Example: Thanks to autosave, I was able to recover most of my unsaved thesis after a power cut.
A copy of a file or document saved automatically by such a facility.
Example: Only the three most recent autosaves are preserved, to save disk space.
verb
Definitions
To save (data) automatically.