Did you know that Amazon.com was formerly cadabra.com? Well, imagine how lame it would have been and probably don't not have survived the dotcom bust had Amazon not changed its name.
Here are fifty of some of the biggest companies you've probably heard of and how they got them name. I particularly like how 3M, Adobe, Audi, Lego, Nabisco, Mattel, Pepsi,
Now Verizon got its name is pretty interesting. So is vodafone.
It's a mix of translations for some, words taken from dead languages (is Latin considered dead?), names, and clever concoctions. Though some like IBM, which stands for International Business Machine, is kinda name but the story behind it sounds interesting.