coincidence (n.)youdaoicibaDictYouDict[coincidence 词源字典]
c. 1600, "exact correspondence in substance or nature," from French coincidence, from coincider, from Medieval Latin coincidere (see coincide). From 1640s as "occurrence or existence during the same time." Meaning "a concurrence of events with no apparent connection" is from 1680s, perhaps first in writings of Sir Thomas Browne.[coincidence etymology, coincidence origin, 英语词源]