Strong's G4291 — προΐστημι (verb)
proistemi (pro-is"'-tay-mee) v.
1. to stand before
2. (in rank) to preside
3. (by implication) to practise
[from G4253 and G2476]
KJV: maintain, be over, rule 
Root(s): G4253, G2476 
Hebrew root: ἵστημι
Occurrences: 8