Source : Webster's Revised Unabridged Dictionary (1913)

Whithersoever \Whith`er*so*ev"er\, adv. [Whither + soever.]
   To whatever place; to what place soever; wheresoever; as, I
   will go whithersoever you lead.

Source : WordNet®

whithersoever
     adv : to whatever place; "whithersoever you go..." [syn: {whitherso}]