The Collaborative International Dictionary of English v.0.48:

Blame \Blame\, n. [OE. blame, fr. F. bl[^a]me, OF. blasme, fr.
   bl[^a]mer, OF. blasmer, to blame. See Blame, v.]
   1. An expression of disapprobation fir something deemed to be
      wrong; imputation of fault; censure.
      [1913 Webster]

            Let me bear the blame forever.        --Gen. xiiii.
                                                  9.
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   2. That which is deserving of censure or disapprobation;
      culpability; fault; crime; sin.
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            Holy and without blame before him in love. --Eph. i.
                                                  4.
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   3. Hurt; injury. [Obs.] --Spenser.
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   Syn: Censure; reprehension; condemnation; reproach; fault;
        sin; crime; wrongdoing.
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The Collaborative International Dictionary of English v.0.48:

Blame \Blame\ (bl[=a]m), v. t. [imp. & p. p. Blamed
   (bl[=a]md); p. pr. & vb. n. Blaming.] [OE. blamen, F.
   bl[^a]mer, OF. blasmer, fr. L. blasphemare to blaspheme, LL.
   also to blame, fr. Gr. blasfhmei^n to speak ill, to slander,
   to blaspheme, fr. bla`sfhmos evil speaking, perh, for
   blapsi`fhmos; bla`psis injury (fr. bla`ptein to injure) +
   fh`mh a saying, fr. fa`nai to say. Cf. Blaspheme, and see
   Fame.]
   [1913 Webster]
   1. To censure; to express disapprobation of; to find fault
      with; to reproach.
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            We have none to blame but ourselves.  --Tillotson.
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   2. To bring reproach upon; to blemish. [Obs.]
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            She . . . blamed her noble blood.     --Spenser.
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   To blame, to be blamed, or deserving blame; in fault; as,
      the conductor was to blame for the accident.
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            You were to blame, I must be plain with you. --Shak.
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WordNet (r) 3.0 (2006):

blame
    adj 1: expletives used informally as intensifiers; "he's a
           blasted idiot"; "it's a blamed shame"; "a blame cold
           winter"; "not a blessed dime"; "I'll be damned (or
           blessed or darned or goddamned) if I'll do any such
           thing"; "he's a damn (or goddam or goddamned) fool"; "a
           deuced idiot"; "an infernal nuisance" [syn: blasted,
           blame, blamed, blessed, damn, damned, darned,
           deuced, goddam, goddamn, goddamned, infernal]
    n 1: an accusation that you are responsible for some lapse or
         misdeed; "his incrimination was based on my testimony";
         "the police laid the blame on the driver" [syn:
         incrimination, inculpation, blame]
    2: a reproach for some lapse or misdeed; "he took the blame for
       it"; "it was a bum rap" [syn: blame, rap]
    v 1: put or pin the blame on [syn: blame, fault] [ant:
         absolve, free, justify]
    2: harass with constant criticism; "Don't always pick on your
       little brother" [syn: blame, find fault, pick]
    3: attribute responsibility to; "We blamed the accident on her";
       "The tragedy was charged to her inexperience" [syn: blame,
       charge]

Moby Thesaurus II by Grady Ward, 1.0:

150 Moby Thesaurus words for "blame":
   account for, accountability, accounting for, accredit with,
   accrete to, accusal, accusation, accuse, accusing, acknowledge,
   allegation, allegement, anathema, anathematize, anathemize,
   animadvert on, answerability, application, apply to, arraign,
   arraignment, arrogation, ascribe to, ascription, assign to,
   assignation, assignment, attach to, attachment, attribute to,
   attribution, bill of particulars, blame for, blame on,
   bring home to, bringing of charges, bringing to book,
   call to account, cast blame upon, cast reflection upon,
   castigation, censure, charge, charge on, charge to,
   complain against, complaint, condemn, condemnation, confess,
   connect with, connection with, count, credit, credit with,
   criticism, criticize, cry down, cry out against, cry out on,
   cry shame upon, culpability, damn, damnation, decrial, decry,
   delation, denounce, denouncement, denunciate, denunciation,
   derivation from, disapprobation, disapproval, etiology,
   excoriation, fasten upon, father upon, fault, fix on, fix upon,
   flaying, fulminate against, fulmination, fustigation, guilt,
   hang on, hold against, honor, impeach, impeachment, implication,
   impugn, imputation, impute, impute to, incriminate, indict,
   indictment, information, innuendo, insinuation, inveigh against,
   knock, lawsuit, lay to, laying of charges, liability, objurgation,
   onus, palaetiology, pillorying, pin on, pinpoint, place upon,
   placement, plaint, point to, prosecution, rap, rebuke, recriminate,
   recrimination, refer to, reference to, reflect upon, reprehend,
   reprehension, reprimand, reproach, reprobate, reprobation, reproof,
   reprove, responsibility, saddle on, saddle with, saddling, scold,
   set down to, settle upon, shake up, skin, skinning alive,
   stricture, suit, taxing, true bill, unspoken accusation,
   veiled accusation