em·py·re·an 
(ĕm′pī-rēən, ĕm-pîrē-ən)
(ĕm′pī-rēən, ĕm-pîrē-ən)n.
1.
a. The highest reaches of heaven, believed by the ancients to be a realm of pure fire or light.
b. The abode of God and the angels; paradise.
2. The sky.
adj.
Of or relating to the empyrean of ancient belief.
[From Medieval Latin empyreum, from empyreus, empyreal; see EMPYREAL.]