Source : Webster's Revised Unabridged Dictionary (1913)

Wroth \Wroth\, a. [OE. wroth, wrap, AS. wr[=a][eth] wroth,
   crooked, bad; akin to wr[=i][eth]an to writhe, and to OS.
   wr[=e][eth]angry, D. wreed cruel, OHG. reid twisted, Icel.
   rei[eth]r angry, Dan. & Sw. vred. See {Writhe}, and cf.
   {Wrath}.]
   Full of wrath; angry; incensed; much exasperated; wrathful.
   ``Wroth to see his kingdom fail.'' --Milton.

         Revel and truth as in a low degree, They be full wroth
         [i. e., at enmity] all day.              --Chaucer.

         Cain was very wroth, and his countenance fell. --Gen.
                                                  iv. 5.

Source : WordNet®

wroth
     adj : vehemently incensed and condemnatory; "they trembled before
           the wrathful queen"; "but wroth as he was, a short
           struggle ended in reconciliation" [syn: {wrathful}, {wrothful}]