beholden

from WordNet (r) 3.0 (2006)

beholden
    adj 1: under a moral obligation to someone

from The Collaborative International Dictionary of English v.0.48

Behold \Be*hold"\, v. t. [imp. & p. p. {Beheld}(p. p. formerly
   {Beholden}, now used only as a p. a.); p. pr. & vb. n.
   {Beholding}.] [OE. bihalden, biholden, AS. behealdan to hold,
   have in sight; pref. be- + healdan to hold, keep; akin to G.
   behalten to hold, keep. See {Hold}.]
   To have in sight; to see clearly; to look at; to regard with
   the eyes.
   [1913 Webster]

         When he beheld the serpent of brass, he lived. --Num.
                                                  xxi. 9.
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         Behold the Lamb of God, which taketh away the sin of
         the world.                               --John. i. 29.
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   Syn: To scan; gaze; regard; descry; view; discern.
        [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Beholden \Be*hold"en\, p. a. [Old p. p. of behold, used in the
   primitive sense of the simple verb hold.]
   Obliged; bound in gratitude; indebted.
   [1913 Webster]

         But being so beholden to the Prince.     --Tennyson.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

26 Moby Thesaurus words for "beholden":
      acknowledging, appreciative, beholden to, bound, bounden,
      bounden to, cognizant of, committed, crediting, duty-bound,
      grateful, in debt, in duty bound, indebted, indebted to,
      much obliged, obligate, obligated, obliged, obliged to, pledged,
      saddled, sensible, thankful, tied, under obligation