The Collaborative International Dictionary of English v.0.48:

Sunrise \Sun"rise`\, Sunrising \Sun"ris`ing\, n.
   1. The first appearance of the sun above the horizon in the
      morning; more generally, the time of such appearance,
      whether in fair or cloudy weather; as, to begin work at
      sunrise. "The tide of sunrise swells." --Keble.
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   2. Hence, the region where the sun rises; the east.
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            Which were beyond Jordan toward the sunrising.
                                                  --Deut. iv. 47
                                                  (Rev. Ver.)
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            Full hot and fast the Saxon rides, with rein of
            travel slack,
            And, bending o'ev his saddle, leaves the sunrise at
            his back.                             --Whittier.
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