Dictionary entry

θυρεός

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

θυρεός, -οῦ, ὁ

(< θύρα), [in LXX for מָגֵן, צִנָּה;]

1. in Hom., a door-stone.

2. In late Gk. (Polyb., Plut.), the scutum, a large oblong shield: θ. τ. πίστεως, Eph 6:16 (cf. Wi 5:20, where ὁσιότης is likened to the ἀσπίς, the clypeus or small round shield of the light-armed soldier).†