Noah Webster
Sanguin
SAN'GUIN, adjective [Latin sanguineus, from sanguis, blood.]
1. Red; having the color of blood; as a sanguine color or countenance.
2. Abounding with blood; plethoric; as a sanguine habit of body.
3. Warm; ardent; as a sanguine temper.
4. Confident. He is sanguine in his expectations of success.
SAN'GUINE, noun Blood color. [Not in use.]
SAN'GUINE, verb transitive
1. To stain with blood. [But ensanguine is generally used.]
2. To stain or varnish with a blood color.