note verbale

[nawt ver-bal]
noun, plural notes ver·bales [nawt ver-bal] /nɔt vɛrˈbal/. French.
  1. a diplomatic communication prepared in the third person and unsigned: less formal than a note but more formal than an aide-mémoire.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018