The Collaborative International Dictionary of English v.0.48:

Sorry \Sor"ry\, a. [Compar. Sorrier; superl. Sorriest.] [OE.
   sory, sary, AS. s[=a]rig, fr. s[=a]r, n., sore. See Sore,
   n. & a. The original sense was, painful; hence, miserable,
   sad.]
   1. Grieved for the loss of some good; pained for some evil;
      feeling regret; -- now generally used to express light
      grief or affliction, but formerly often used to express
      deeper feeling. "I am sorry for my sins." --Piers Plowman.
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            Ye were made sorry after a godly manner. --2 Cor.
                                                  vii. 9.
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            I am sorry for thee, friend; 't is the duke's
            pleasure.                             --Shak.
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            She entered, were he lief or sorry.   --Spenser.
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   2. Melancholy; dismal; gloomy; mournful. --Spenser.
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            All full of chirking was this sorry place.
                                                  --Chaucer.
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   3. Poor; mean; worthless; as, a sorry excuse. "With sorry
      grace." --Chaucer.
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            Cheeks of sorry grain will serve.     --Milton.
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            Good fruit will sometimes grow on a sorry tree.
                                                  --Sir W.
                                                  Scott.
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   Syn: Hurt; afflicted; mortified; vexed; chagrined;
        melancholy; dismal; poor; mean; pitiful.
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