\Pre*co"cious*ness\, Precocity \Pre*coc"i*ty\, n.
[Cf. F. pr['e]cocit['e].]
The quality or state of being precocious; untimely ripeness;
premature development, especially of the mental powers;
forwardness.
      Saucy precociousness in learning.        --Bp.
                                               Mannyngham.
      That precocity which sometimes distinguishes uncommon
      genius.                                  --Wirt.