Prevenient =
Coming before.
Preceding.
Precedent anticipative of later events.
"In whom also we have obtained an inheritance, being predestinated according to the purpose of Him who works all things after the counsel of His own will" ~Eph. 1:11
Being predestined
proorizō =
Predetermined.
Decided beforehand (from eternity).
Appointed beforehand / foreordained.
"He made known to us the secret of His will. And this is in harmony with God's merciful purpose for the government of the world when the times are ripe for it--the purpose which He has cherished in His own mind of restoring the whole creation to find its one Head in Christ; yes, things in Heaven and things on earth, to find their one Head in Him. In Him we have been made heirs, having been chosen beforehand in accordance with the intention of Him whose might carries out in everything the design of His own will."