All 7 Uses

sanguine
in
David Copperfield
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Mr. Micawber may have concealed his difficulties from me in the first instance, but his sanguine temper may have led him to expect that he would overcome them.†
Chpt 10-12 *
Walking along the street, reflecting upon the probability of something turning up (of which I am at present rather sanguine), I find a young but valued friend turn up, who is connected with the most eventful period of my life; I may say, with the turning-point of my existence.†
Chpt 16-18
We might have been a party of Ogres, the conversation assumed such a sanguine complexion.†
Chpt 25-27
Miss Mills accepted this trust, too; but was not sanguine.†
Chpt 37-39
Being assisted by a gentleman who not long ago aspired to the favour of your hand, I am sanguine as to that.'†
Chpt 49-51
Shall I ever forget how, in a moment, he was the most sanguine of men, looking on to fortune; or how Mrs. Micawber presently discoursed about the habits of the kangaroo!†
Chpt 52-54
Your old knowledge of me, my dear Mr. Copperfield, will have told you that I have not the sanguine disposition of Mr. Micawber.†
Chpt 55-57

Definitions:

(1) (sanguine)
confidently optimistic
(2) (meaning too rare to warrant focus)
Other meanings of sanguine relate to its root meaning of blood. Thus sanguine or rare derivatives like sanguinary or sanguineous can refer to the color red or to bloodshed.