Is it ensure, insure, or assure?
as an element in word formation, ultimately from cybernetics (q.v.). It enjoyed explosive use with the rise of the Internet early 1990s. One researcher (Nagel) counted 104 words formed from it by 1994. Cyberpunk (by 1986) and cyberspace were among the earliest.
Cyber is such a perfect prefix. Because nobody has any idea what it means, it can be grafted onto any old word to make it seem new, cool -- and therefore strange, spooky. ["New York" magazine, Dec. 23, 1996]As a stand-alone, it is attested by 1998 as short for cybersex (which is attested by 1995).
A prefix that means "computer" or "computer network," as in cyberspace, the electronic medium in which online communication takes place.
Having to do with computers and computer operations: cybergroup, cybermuffin, cyberphobe, cybersex
[late 1980s+; fr Greek kyber, ''rudder''; used by the mathematician Norbert Wiener in 1948 about his work on automatic control]
To have cybersex.