auto-save

/AO1 T OW0 S EY0 V/
noun
  1. 1

    A software facility that saves an open document periodically to avoid the risk of data loss.

    โ€œThanks to autosave, I was able to recover most of my unsaved thesis after a power cut.โ€

  2. 2

    A copy of a file or document saved automatically by such a facility.

    โ€œOnly the three most recent autosaves are preserved, to save disk space.โ€

verb
  1. 1

    To save (data) automatically.

Source: https://en.wiktionary.org/wiki/auto-save, https://en.wiktionary.org/wiki/autosave