Strong's G4030 — περικεφαλαία (noun)
perikephalaia (per-ee-kef-al-ai'-ah) n.
1. encirclement of the head, i.e. a helmet
[feminine of a compound of G4012 and G2776]
KJV: helmet 
Root(s): G4012, G2776 
Hebrew root: κεφαλή
Occurrences: 2