reassures

verb
  1. 1

    To assure anew; to restore confidence to; to free from fear or self-doubt.

    โ€œThe boy's mother reassured him that there was no monster hiding under the bed.โ€

  2. 2

    To reinsure.

Source: https://en.wiktionary.org/wiki/reassure, https://en.wiktionary.org/wiki/reassures