sunrising

As a noun sunrising is

(obsolete) sunrise, daybreak.

As nouns the difference between terms and sunrising

is that terms is while sunrising is (obsolete) sunrise, daybreak.

As nouns the difference between daybreak and sunrising

is that daybreak is dawn while sunrising is sunrise, daybreak.

As nouns the difference between sunrise and sunrising

is that sunrise is (figuratively) the time of day when the sun (l) above the eastern horizon while sunrising is (obsolete) sunrise, daybreak.

As an adjective sunrise

is pertaining to an unusually early time of day.