Well, as long as the English Language remains, some things cannot be confused or distorted by interpretation.
Let us allow the Monomyth to speak:
The Dragon God and the Missing God
The Dragon God is always related to Time, and is universally revered as the "First God." He is often called Akatosh, "whose perch from Eternity allowed the day." He is the central God of the Cyrodilic Empire.
The Missing God is always related to the Mortal Plane, and is a key figure in the Human/Aldmeri schism. The 'missing' refers to either his palpable absence from the pantheon (another mental distress that is interpreted a variety of ways), or the removal of his 'divine spark' by the other immortals. He is often called Lorkhan, and his epitaphs are many, equally damnable and devout.
Note that Tamriel and the Mortal Plane do not exist yet. The Gray Maybe is still the playground of the Original Spirits. Some are more bound to Anu's light, others to the unknowable void. Their constant flux and interplay increase their number, and their personalities take long to congeal. When Akatosh forms, Time begins, and it becomes easier for some spirits to realize themselves as beings with a past and a future. The strongest of the recognizable spirits crystallize: Mephala, Arkay, Y'ffre, Magnus, Rupgta, etc., etc. Others remain as concepts, ideas, or emotions. One of the strongest of these, a barely formed urge that the others call Lorkhan, details a plan to create Mundus, the Mortal Plane.
Did you all hear that?
After Akatosh forms Mephala and the rest crystallize. Others remain as concepts including a
barely formed urge called Lorkhan.
Read my lips, a barely formed urge...
While Akatosh is formed, Lorkhan is barely formed. Simply grammar, it cannot be twisted.
Altmeri Version
Anu created Auriel, the soul of his soul. Auriel bled through the Aurbis as a new force, called time. With time, various aspects of the Aurbis began to understand their natures and limitations. They took names, like Magnus or Mara or Xen. One of these, Lorkhan, was more of a limit than a nature, so he could never last long anywhere
Again Auriel comes first establishes time, and then Magnus, Mara and Lorkhan follow...