verb (used without object), occurred, occurring.
to happen; take place; come to pass: When did the accident occur?
to be met with or found; present itself; appear.
to suggest itself in thought; come to mind (usually followed by to ): An idea occurred to me.

1520–30; < Latin occurrere to run to meet, arrive, meet, equivalent to oc- oc- + currere to run

preoccur, verb (used without object), preoccurred, preoccurring.
reoccur, verb (used without object), reoccurred, reoccurring.
unoccurring, adjective

1. befall. See happen. 2. arise, offer.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To occurring
World English Dictionary
occur (əˈkɜː)
vb , -curs, -curring, -curred
1.  to happen; take place; come about
2.  to be found or be present; exist
3.  (foll by to) to be realized or thought of (by); suggest itself (to)
usage  It is usually regarded as incorrect to talk of pre-arranged events occurring or happening: the wedding took place (not occurred or happened) in the afternoon

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Word Origin & History

1520s, "meet, meet in argument," from M.Fr. occurrer, from L. occurrere "run to meet, run against, befall, present itself," from ob "against, toward" + currere "to run" (see current). Sense development is from "meet" to "present itself" to "appear" to "happen" ("present
itself in the course of events"). Meaning "to come into one's mind" is from 1620s. Related: Occurred.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Example sentences
The incident, occurring at the height of morning rush hour, caused major
  traffic jams.
The combination of aptness and familiarity means that clichés are constantly
  occurring to a writer.
Based on these patterns, they create an index, which spits out the overall
  probability of a crisis occurring.
Scientists are already seeing some of these changes occurring more quickly than
  they had expected.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature