overstay definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
to stay beyond the time, duration, or limits of
overstay definition by American Heritage Dictionary
transitive verb o·ver·stayed, o·ver·stay·ing, o·ver·stays
To stay beyond the set limits or expected duration of; outstay: The guests overstayed their welcome.