Seed race

The seed races are a group of titan-created races.

The earthen are a synthesized race engineered by the titans, functioning as one of the seed races in the initial population of Azeroth.

After the war between the Aesir and Vanir, Loken initiated stasis of several seed races including the earthen, giants and vrykul at designated holding facilities.

Known or possible seed races
It is likely that the seed races are the races left behind by the titans to shape Azeroth.