Sanguine

Sanguine - Basically it means bloody or bloodthirsty.  It can also refer to the bright red color - blood red.  It can also refer to a  ruddy complexion.  There is also the old body humor approach to personality - the sanguine type is marked by high color, sturdiness and cheerfulness.  Confident and optimistic people are also referred to and sanguine.  It is an interesting word, and it's roots go back to Middle English from the Latin sanguineus