corroborates

/K ER0 AO1 B ER0 EY0 T S/
verb
  1. 1

    To confirm or support something with additional evidence; to attest or vouch for.

  2. 2

    To make strong; to strengthen.

Source: https://en.wiktionary.org/wiki/corroborate, https://en.wiktionary.org/wiki/corroborates