prearrangement
— Noun
– English
~ something arranged in advance
preassemble
— Verb
– English
~ to manufacture sections of (a building), especially in a factory, so that they can be easily transported to and rapidly assembled on a building site of buildings
Precambrian eon
— Noun
– English
~ the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago