dayspring

As a proper noun aurora

is (roman god) roman goddess of the dawn; equivalent of the greek eos sister of luna and sol.

As a noun dayspring is

(archaic) the beginning of the day, or first appearance of light; the dawn; daybreak.

As nouns the difference between sunrise and dayspring

is that sunrise is (figuratively) the time of day when the sun (l) above the eastern horizon while dayspring is (archaic) the beginning of the day, or first appearance of light; the dawn; daybreak.

As an adjective sunrise

is pertaining to an unusually early time of day.

As nouns the difference between taxonomy and dayspring

is that taxonomy is the science or the technique used to make a classification while dayspring is (archaic) the beginning of the day, or first appearance of light; the dawn; daybreak.

Dayspring is a synonym of daybreak.

As nouns the difference between daybreak and dayspring

is that daybreak is dawn while dayspring is the beginning of the day, or first appearance of light; the dawn; daybreak.