The Collaborative International Dictionary of English v.0.48:

Wrath \Wrath\, a.
   See Wroth. [Obs.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Wrath \Wrath\, v. t.
   To anger; to enrage; -- also used impersonally. [Obs.] "I
   will not wrathen him." --Chaucer.
   [1913 Webster]

         If him wratheth, be ywar and his way shun. --Piers
                                                  Plowman.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Wrath \Wrath\ (?; 277), n. [OE. wrathe, wra[thorn][thorn]e,
   wrethe, wr[ae][eth][eth]e, AS. wr[=ae][eth][eth]o, fr.
   wr[=a][eth] wroth; akin to Icel. rei[eth]i wrath. See
   Wroth, a.]
   [1913 Webster]
   1. Violent anger; vehement exasperation; indignation; rage;
      fury; ire.
      [1913 Webster]

            Wrath is a fire, and jealousy a weed. --Spenser.
      [1913 Webster]

            When the wrath of king Ahasuerus was appeased.
                                                  --Esther ii.
                                                  1.
      [1913 Webster]

            Now smoking and frothing
            Its tumult and wrath in.              --Southey.
      [1913 Webster]

   2. The effects of anger or indignation; the just punishment
      of an offense or a crime. "A revenger to execute wrath
      upon him that doeth evil." --Rom. xiii. 4.
      [1913 Webster]

   Syn: Anger; fury; rage; ire; vengeance; indignation;
        resentment; passion. See Anger.
        [1913 Webster]

WordNet (r) 3.0 (2006):

wrath
    n 1: intense anger (usually on an epic scale)
    2: belligerence aroused by a real or supposed wrong (personified
       as one of the deadly sins) [syn: wrath, anger, ire,
       ira]

Moby Thesaurus II by Grady Ward, 1.0:

37 Moby Thesaurus words for "wrath":
   a transient madness, acedia, acerbity, acrimony, anger, angriness,
   asperity, avarice, avaritia, deadly sin, enragement, envy, fury,
   gluttony, grapes of wrath, greed, gula, heat, indignation,
   infuriation, invidia, ira, irateness, ire, lust, luxuria, mad,
   offense, pride, rage, resentment, saeva indignatio, sloth,
   soreness, superbia, vials of wrath, wrathfulness



The Devil's Dictionary (1881-1906):

WRATH, n.  Anger of a superior quality and degree, appropriate to
exalted characters and momentous occasions; as, "the wrath of God,"
"the day of wrath," etc.  Amongst the ancients the wrath of kings was
deemed sacred, for it could usually command the agency of some god for
its fit manifestation, as could also that of a priest.  The Greeks
before Troy were so harried by Apollo that they jumped out of the
frying-pan of the wrath of Cryses into the fire of the wrath of
Achilles, though Agamemnon, the sole offender, was neither fried nor
roasted.  A similar noted immunity was that of David when he incurred
the wrath of Yahveh by numbering his people, seventy thousand of whom
paid the penalty with their lives.  God is now Love, and a director of
the census performs his work without apprehension of disaster.