Strong's G4278 — προενάρχομαι (verb)
proenarchomai (pro-en-ar'-khom-ai) v.
1. to commence already
[from G4253 and G1728]
KJV: begin (before) 
Root(s): G4253, G1728 
Hebrew root: ἐνάρχομαι
Occurrences: 2