god·head 
(gŏdhĕd′)
(gŏdhĕd′)n.
1. Divinity; godhood.
2. Godhead
a. The Christian God, especially the Trinity.
b. The essential and divine nature of God, regarded abstractly.
[Middle English godhode, godhede, from Old English godhād : god, god; see GOD + -hād, -hood.]