What does the word sangfroid mean?

Usage examples for sangfroid

  1. With perfect sangfroid, he answered: This is unworthy of you. – John Marsh's Millions by Charles Klein Arthur Hornblow
  2. She was piqued into a practical undertaking by the man who could say to his friend with such sangfroid, 'I mean to marry that lady. – The Hand of Ethelberta by Thomas Hardy