noun · feminine

perikefalaias

Greekπερικεφαλαία (perikefalaia)

Strong’sG4030

a helmet

stem perikefalai-2 times in the New Testamentin 2 of 27 books1 of 10 forms occur

Translated as

helmet2×

What it means

† περι-κεφαλαία, -ας, ἡ,

[in LXX for כּוֹבַע, קוֹבַע;]

a helmet: fig., I Th 5:8; c. gen. explic., π. τ. σωτηρίου, Eph 6:17 (cf. Is 59:17).†

G. Abbott-Smith, A Manual Greek Lexicon of the New Testament, 1922 — public domain. References open in the reader.

Strong’s G4030 — the 1890 definition, and where the word comes from

Saidper-ee-kef-al-ah'-yah

encirclement of the head, i.e. a helmet

Fromfeminine of a compound of G4012 and G2776;

King Jameshelmet.

James Strong, Exhaustive Concordance of the Bible, 1890 — public domain. The numbers in it link to the entries here.

Every form

Job in the sentence case	one singular	more than one plural
subject nominative	perikefalaias	perikefalaiais
object accusative	perikefalaian2×περικεφαλαίαν	perikefalaiain
direct address vocative	perikefalaiar	perikefalaiair
of, belonging to genitive	perikefalaiau	perikefalaiaiu
to, for dative	perikefalaia	perikefalaiai

Tinted cells are forms the New Testament never uses, so there is no Greek to show against them — but they are still correct Biblang, built from the slots below like any other.

Why these forms, and no others — the slots that make them

perikefalaistem+agender+snru—its job in the sentence case+—ione · more than one number

perikefalaia is this word in every one of its forms. The slots after it make all the rest.

same in every form varies — every value shown

Where it appears

2 occurrences, every one of them listed

perikefalaian“helmet”objectaccusative singular2×

Ephesians 6:17“helmet”kai tan perikefalaian teu sōtērieu dechevar, kai tan machairan teu pneumeu, hem atō rēmem theou,And take the helmet of salvation and the sword of the Spirit, which is the word of God.

1 Thessalonians 5:8“helmet”nis de hēmerau arōtois nēfaneiō, endueratois thōraxon pistiau kai agapau kai perikefalaian elpian sōtērēau;But since we belong to the day, let us be sober, putting on the breastplate of faith and love, and the helmet of our hope of salvation.