Strong's G4012 — περί (preposition)
peri (per-ee') prep.
1. (properly) through (all over), i.e. around
2. (figuratively) with respect to
{used in various applications, of place, cause or time (with the genitive case denoting the subject or occasion or superlative point; with the accusative case the locality, circuit, matter, circumstance or general period)}
[from the base of G4008]
KJV: (there-)about, above, against, at, on behalf of, X and his company, which concern, (as) concerning, for, X how it will go with, ((there-, where-)) of, on, over, pertaining (to), for sake, X (e-)state, (as) touching, (where-)by (in), with. In comparative, it retains substantially the same meaning of circuit (around), excess (beyond), or completeness (through) 
Root(s): G4008 
Hebrew root: πέραν
Occurrences: 334