sanguinity

As an adverb sanguinarily

is in a sanguinary manner.

As a noun sanguinity is

the quality of being sanguine; sanguineness.

As nouns the difference between optimism and sanguinity

is that optimism is a tendency to expect the best, or at least, a favourable outcome while sanguinity is the quality of being sanguine; sanguineness.

As nouns the difference between sanguinity and hope

is that sanguinity is the quality of being sanguine; sanguineness while hope is the belief or expectation that something wished for can or will happen.

As a verb hope is

to want something to happen, with a sense of expectation that it might.

As a proper noun Hope is

{{given name|female|from=English}} from the virtue, like Faith and Charity first used by Puritans.