urticate

from WordNet (r) 3.0 (2006)

urticate
    v 1: whip with or as with nettles
    2: sting with or as with nettles and cause a stinging pain or
       sensation [syn: {nettle}, {urticate}]

from The Collaborative International Dictionary of English v.0.48

Urticate \Ur"ti*cate\, v. t. & i. [imp. & p. p. {Urticated}; p.
   pr. & vb. n. {Urticating}.]
   To sting with, or as with, nettles; to irritate; to annoy.
   --G. A. Sala.
   [1913 Webster]