wun·der·kind 
(vndər-kĭnt′, wŭndər-kĭnd′)
(vndər-kĭnt′, wŭndər-kĭnd′)n. pl. wun·der·kin·der (vndər-kĭn′dər) also wun·der·kinds (wŭndər-kĭndz′)
1. A child prodigy.
2. A person of remarkable talent or ability who achieves great success or acclaim at an early age.
[German : Wunder, wonder, prodigy (from Middle High German, from Old High German wuntar) + Kind, child; see KINDERGARTEN.]