Xavière (alt 138 for accent) is a name from a book/comic called "Aline and the Others." Lots of good French names in there.
The candela (symbol: cd) is the SI base unit of luminous intensity (that is, power emitted by a light source in a particular direction, with wavelengths weighted by the luminosity function, a standardized model of the sensitivity of the human eye).
Her family was what we would consider Nouveau Rich as her father was an ordinary laborer with an excellent work ethic and an even better grasp of money. Her mother was a member of Quel’dorei nobility, the proud penniless kind that racked up bills and used their name to get out of paying them. She was disowned for eloping with a commoner despite his fat wallet.
Growing up with two pragmatic and self sufficient parents, Xavière developed a similar outlook on life. She often worked with her father even as a child. Her love of shiny things and her small stature made her perfect for sniffing out precious veins of metals. Her mother insisted that she be classically trained as a mage though, and when she was not making extra money for her father Xavière was learning about the Arcane from the best tutors money could buy.
Xavière's relationship with her parents and other family members was normal. Her father ran the business and everyone else was dedicated to making it as successful as possible. This arrangement suited everyone just fine until Xavière was offered a job maintaining the spires of Eversong. Eager to try something new and be a little more independent, Xavière moved to her own apartment in Silvermoon and began training at the Sunspire.
During the attack on Quel'Thalas, Xavière was actually in Dalaran studying forbidden lore. Although she excelled at Arcane studies and applied it creatively to her career, she found that school of magic boring. As a child she had been scolded for showing an interest in Demonic magic, but as an adult few people would bother to interrupt her studies. If she wasn't working Xavière was studying.
Upon returning to Silvermoon, Xavière learned that her family had been wiped out by the Scourge and she was the sole heir of her family estate. What was left of it that is. Now Xavière devotes herself to accumulating wealth for her own needs, destroying the Scourge and rebuilding her father's business one step at a time. Having abandoned the Arcane for Demonic magic, she does not attempt to hide her addiction to fel energy. Her interest in Outland is purely motivated by curiosity and business. Lots of wealth to find, lots of energy to feast upon. Sounds like paradise.