unnerve

/ʌnˈnɜrv/
verb
  1. To make someone feel nervous, worried, or less confident.
    • Speaking in front of a large crowd can unnerve even experienced speakers.
    • The sudden loud noise unnerved the horse and it began to run.
    • The strange silence in the house unnerved her as she walked inside.
Antonyms
What does "unnerve" mean? | whatsthatwordmean | whatsthatwordmean