Source : Webster's Revised Unabridged Dictionary (1913)

Woo \Woo\, v. i.
   To court; to make love. --Dryden.

Woo \Woo\, v. t. [imp. & p. p. {Wooed}; p. pr. & vb. n.
   {Wooing}.] [OE. wowen, wo?en, AS. w?gian, fr. w?h bent,
   crooked, bad; akin to OS. w[=a]h evil, Goth. unwahs
   blameless, Skr. va?c to waver, and perhaps to E. vaccilate.]
   1. To solicit in love; to court.

            Each, like the Grecian artist, wooes The image he
            himself has wrought.                  --Prior.

   2. To court solicitously; to invite with importunity.

            Thee, chantress, oft the woods among I woo, to hear
            thy even song.                        --Milton.

            I woo the wind That still delays his coming.
                                                  --Bryant.

Source : WordNet®

woo
     v 1: seek someone's favor; "China is wooing Russia" [syn: {court}]
     2: make amorous advances towards; "John is courting Mary" [syn:
         {court}, {romance}, {solicit}]