Strong's G4997 — σωφροσύνη (noun)
sophrosune (so-fros-oo'-nay) n.
1. soundness of mind
2. (literally) sanity
3. (figuratively) self-control
[from G4998]
KJV: soberness, sobriety 
Root(s): G4998 
Hebrew root: σώφρων
Occurrences: 3