What does the word blood mean?

Usage examples for blood

  1. Young Herbert Fitzgerald had money and position; her daughter had beauty and high blood. – Castle Richmond by Anthony Trollope
  2. " If you do, my blood will lie upon your head. – The Bertrams by Anthony Trollope
  3. Some of their hearts' blood first shall pay for it. – Cromwell by Shakespeare (spurious and doubtful works)