Saw this interesting post about names people come up with for their companies. Ours is mentioned within although the origin of "Plunify" is probably not that interesting compared to some of the others!
http://www10.edacafe.com/blogs/thebrekertrekker/2014/12/16/guest-post-whats-in-a-name/
For the record, we named our FPGA timing closure and optimization tool InTime because we wanted to help engineers get home in time to enjoy the holidays with their families!