Elysian

Setting
In ancient times, the human race lived alongside mythical creatures. Super-advanced technology erradicated most of today's world's problems, but human discord was unavoidable. Before the near destruction of mankind, the mythical creatures discovered a path to a massive, temperate cavity within the Earth's mantle. This realm was referred to as the Underworld. The creatures began to settle here and named their new nation Elysium. After the humans' Great War, the Elysian language became the root of all later languages as the creatures secretly influenced the new humans into a less dangerous race.

General Information
Elysian is almost completely root-based. Each word has a root at its core. The type of word is indicated by a prefix, and further essential information is represented by one or more suffixes.

Word order
Sentence