The word for today is…
sanguine (noun) – 1. (a) Cheerfully confident; optimistic.
(b) At ease; accepting.
2. (Archaic)
(a) Having blood as the dominant humour in terms of medieval physiology.
(b) Having the temperament and ruddy complexion formerly thought to be characteristic of a person dominated by this humour; passionate.
3. (a) Of the colour of blood; red.
(b) Of a healthy reddish color; ruddy.
Source : The Free Dictionary
Etymology : “Blood-red,” late 14th century (late 12th century as a surname), from Old French sanguin (fem. sanguine), from Latin sanguineus “of blood,” also “bloody, bloodthirsty,” from sanguis (genitive sanguinis) “blood”. Meaning “cheerful, hopeful, confident” first attested circa 1500, because these qualities were thought in old medicine to spring from an excess of blood as one of the four humours. Also in Middle English as a noun, “type of red cloth” (early 14th century).
