overspill

over- +‎ spill

overspill (countable and uncountable, plural overspills)

1. That which spills over.

   New towns were constructed to accommodate overspill from established cities.

overspill (third-person singular simple present overspills, present participle overspilling, simple past and past participle overspilled or overspilt)

1. To spill over, to overflow, to spill out of.
   • 2002, Urlan Wannop, Regional Imperative: Regional Planning and Governance in Britain, page 93:

     Further, Coventry's prosperity and rapid growth was threatening that it as well as Birmingham would require to overspill its boundaries.

   • 2004, Delilah Devlin, Pirate's Desire, page 202:

     Calandra added more, until the oil threatened to overspill her palm.

• spill over, spillover