Actually, Quantium's gibberish. v=w=v
It's what you call "common fantasy/scifi naming troupe", as in "just pull something out of your a$$ as long as it sounds fine."
It's the same idea with Klingons ain't a bunch of kings stacking together, but just a bunch of words that sounds growling and harsh.
(Along the same idea, Guenhwyvar doesn't mean the last sound of someone drowning, and Menzoberranzan isn't related to the female "day of months"... They're all just made up as well.)
...And that's why we have a bunch of companies that call themselves Quantium nowadays: It isn't a word, but it SOUNDS like "quantum" so... Yeah. v=c=v
I wouldn't think too much about it. ~~~=3=~~~ (Otherwise we'd have to start placing meanings on Drizz't and Elminister, and then there'll never be an end to it... =w= )