v.intr. (occurred, occurring)
1. come into being as an event or process at or during some time; happen.
2 exist or be encountered in some place or conditions.
3 (foll. by to; usu. foll. by that + clause) come into the mind of, esp. as an unexpected or casual thought (it occurred to me that you were right).
Etymology: L occurrere go to meet, present itself (as OB-, currere run)