The story goes that EV stood for Electric Vlasic, but the reality is
that it is derived from a very early name for the RISC project which
eventually became Alpha, EVAX. Along the way, it became clear that
what was needed was not an "extended VAX" but a new approach, so the
EVAX name was dropped. However, many people were using it in relation
to the project so some aspect of it stuck around. In a similar
manner, the code name for VMS, STARLET, made its way into filenames on
the product system.