overwinter

verb (used without object)

1. to pass, spend, or survive the winter: to overwinter on the Riviera.

verb

1. (intr) to spend winter (in or at a particular place)
2. (tr) to keep (animals or plants) alive through the winter
3. (intr) (of an animal or plant) to remain alive throughout the winter

v.Old English oferwintran; see over- + winter (v.). Related: Overwintered; overwintering.