oversoon

From over- +‎ soon.

oversoon (comparative more oversoon, superlative most oversoon)

1. Too soon; prematurely.
   • a. 1587, Philippe Sidnei [i.e., Philip Sidney], “(please specify the folio)”, in [Fulke Greville; Matthew Gwinne; John Florio], editors, The Countesse of Pembrokes Arcadia [The New Arcadia], London: […] [John Windet] for William Ponsonbie, published 1590, →OCLC:

     the lad may prove well enough if he oversoon think not too well of himselfe, and will beare away that he heareth of his elders.

• “oversoon”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.