A — 1: ὅπλον
(Strong's #3696 — Noun Neuter — hoplon — hop'-lon )

originally any tool or implement for preparing a thing, became used in the plural for "weapons of warfare." Once in the NT it is used of actual weapons, John 18:3; elsewhere, metaphorically, of (a) the members of the body as instruments of unrighteousness and as instruments of righteousness, Romans 6:13; (b) the "armor" of light, Romans 13:12; the "armor" of righteousness, 2—Corinthians 6:7; the weapons of the Christian's warfare, 2—Corinthians 10:4 .

A — 2: πανοπλία
(Strong's #3833 — Noun Feminine — panoplia — pan-op-lee'-ah )

(Eng., "panoply"), lit., "all armor, full armor," (pas, "all," hoplon, "a weapon"), is used (a) of literal "armor," Luke 11:22; (b) of the spiritual helps supplied by God for overcoming the temptations of the Devil, Ephesians 6:11,13 . Among the Greeks the panoplia was the complete equipment used by heavily armed infantry.

B — 1: ὁπλίζω
(Strong's #3695 — Verb — hoplizo — hop-lid'-zo )

"to arm oneself," is used in 1—Peter 4:1 , in an exhortation "to arm" ourselves with the same mind as that of Christ in regard to His sufferings.

B — 2: καθοπλίζω
(Strong's #2528 — Verb — kathoplizo — kath-op-lid'-zo )

is an intensive form, "to furnish fully with arms," kata, "down," intensive, hoplon, "a weapon," Luke 11:21 , lit., "a strong man fully armed." In the Sept., Jeremiah 46:9 .