Nomen est Omen
In the year of the Great Change the Gods decided to create a new name system. The land itself was still separated through provinces, but there was no clear separation of races anymore. So for one they decided for a language everyone needed to be able to speak - English - and for keeping the surnames in Latin. All surnames are Latin words - mostly neutral or words in the Genitive - to not get them confused with masculine or feminine Latin words often used as first names. There is no certain trend to naming your babies. Anything is possible, any language, any origin, even invented names. Although in some families it became a tradition to name a child after their element (which can be determined at birth by the color of the iris - this color might change as they grow). Every birth is registered by the guardian spirits of the Gods.
Ardor - spoken exactly like the English word and does have the same meaning. (from Latin)
Ater - spoken exactly like "crater" just without the "cr". Its meaning is "black". (from Latin)
Aurea - in English it would be pronounced: "O-ray-ah". Its meaning is "golden". (from Latin)
Catus - in English it would be pronounced "Kay-tus". Its meaning is "clever". (from Latin)
Celerina - English pronounciation: Se-leh-ree-nah
Its meaning is "fast". (a Spanish name)
Clarus - Pronounciation: "Klah - Rus". Its meaning is "bright". (from Latin)
Devius - Pronounciation: "Deh - vee - us". Its meaning is "lonely" (from Latin)
Eruditus - Pronounciation - "Eh - Roo - Dy - Tus". Its meaning is "educated". (from Latin)
Ian - Well I guess the pronounciation is obvious? ^-^ Its an English name, from Hebrew, meaning "God is gracious"
Leigh - Also obvious pronounciation. An English name meaning "field".
Malus - Pronounced: "Mah - loos". Meaning "evil" (from Latin)
Notin - Pronounced just as written. Meaning "Wind" (a Native American name)
Kyan - Also pronounced as written. I changed the word Cyanblue to create the name, but it can also be a different form of the Irish name "Cian" meaning "ancient"
Tisha - Obvious pronounciation ^-^ Short form of the name "Letitia", meaning "Joy"
Weldon - pronounced as written, English surname meaning "from the hill with a well"
Some extra info
Aurea's Name was chosen by the one who raised her - "Aura Cor". Apparently she used her own name and added an "E" to create Aurea's. It fitted to the golden eyes Aurea had when she was a baby indicating that she'll be a Light Magus. Her real mother wanted to call her "Vanessa" meaning "butterfly".
Ater Cor had another name before. He renamed himself "Ater Cor" - "black heart" to fit his personality.
Devius' parents were not pleased with the fact that they gave birth to a Magus of Darkness. They called him "lonely" to express their disappointment.
Eruditus' former name was "Baceolus" meaning "idiot". His parents named him so as he grew older developing a speech defect. When his grandparents adopted him recognizing his parents' inability to raise this child lovingly, they called him by his birth name "Eruditus".
The word "Malus" means "apple tree" as well as it means "evil". The meaning changes depending on the pronounciation. Originally his parents meant "apple tree" for apple was their favorite fruit. After killing them Malus pronounced his name like "evil".
Azuria is with Kyan the only name I made up myself. I have no idea if Azuria exists at all. I just changed the word "azure blue". The name is pronounced "Ah - zoo - ree - ah"
As the Gods used to be people like you and me before, they wanted to create new Latin names to demonstrate their divinity and power.
Obscurus (m.) - "Ob-scoo-rus" meaning "dark" /// Name before the Great Change: "Jerry"
Lux (f.) - "Looks" meaning "light" /// Name before the Great Change: "Aileen"
Aerius (m.) - "Eh-Ree-Us" meaning "airy" /// Name before the Great Change "Park Jae-Hwa"
Imber (m.) - Pronounced as written, meaning "Rain" /// Name before the Great Change "Kieve"
Tellus (f.) - "Tell-oos" meaning "Earth" /// Name before the Great Change "Renia"
Flamma (f.) - "Flah-mah" meaning "flame" /// Name before the Great Change "Allie"