περικεφαλαίαperikephalaía
GreekG40302 occurrences (KJV)
encirclement of the head, i.e. a helmet
KJV renders it: helmet
Where it appears
Lexical data: Strong’s Hebrew & Greek Dictionaries (1890, public domain; openscriptures, CC-BY-SA). Word tagging from the Strong’s-numbered KJV.