The Collaborative International Dictionary of English v.0.48:

Overwork \O`ver*work"\, v. t. [imp. & p. p. Overworkedor
   Overwrought; p. pr. & vb. n. Overworking.]
   1. To work beyond the strength; to cause to labor too much or
      too long; to tire excessively; as, to overwork a horse.
      [1913 Webster]

   2. To fill too full of work; to crowd with labor.
      [1913 Webster]

            My days with toil are overwrought.    --Longfellow.
      [1913 Webster]

   3. To decorate all over.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Overwrought \O`ver*wrought\, p. p. & a. from Overwork.
   1. Wrought upon excessively; overworked.
      [1913 Webster]

   2. Extremely agitated or excited; overexcited; -- of people.
      [PJC]

WordNet (r) 3.0 (2006):

overwrought
    adj 1: deeply agitated especially from emotion; "distraught with
           grief" [syn: distraught, overwrought]

Moby Thesaurus II by Grady Ward, 1.0:

126 Moby Thesaurus words for "overwrought":
   Gongoresque, Johnsonian, affected, aggrandized, amplified,
   arabesque, ballyhooed, baroque, bedizened, big-sounding, busy,
   chichi, convoluted, declamatory, disproportionate, distracted,
   edgy, elaborate, elegant, elevated, euphuistic, exaggerated,
   excessive, exorbitant, extravagant, extreme, fancy, fidgety, fine,
   flamboyant, flaming, flashy, flaunting, florid, flowery, frantic,
   frenetic, frilly, fulsome, fussy, garish, gaudy, grandiloquent,
   grandiose, grandisonant, high-flowing, high-flown, high-flying,
   high-sounding, high-wrought, highfalutin, hyperbolic, in a dither,
   in a tizzy, in a twitter, inflated, inkhorn, inordinate, jittery,
   jumpy, labored, labyrinthine, lexiphanic, lofty, lurid, luxuriant,
   luxurious, magnified, magniloquent, meretricious, moresque,
   nervous, on edge, ornate, orotund, ostentatious, overcome,
   overdone, overdrawn, overelaborate, overelegant, overemphasized,
   overemphatic, overestimated, overexcited, overgreat, overinvolved,
   overlabored, overlarge, overmastered, overpowered, overpraised,
   oversold, overstated, overstrained, overstressed, overwhelmed,
   overworked, pedantic, picturesque, pompous, pretentious,
   pretty-pretty, prodigal, profuse, puffed, rhetorical, rich, rococo,
   sensational, sensationalistic, sententious, showy, sonorous,
   stilted, stretched, strung out, superlative, tall, tense, tortuous,
   touchy, touted, upset, uptight, wound up