Buckler
NET Glossary: a small round shield used in hand-to-hand combat to deflect an opponent's sword or dagger
Buckler [EBD]
(1.) A portable shield (2 Sam. 22:31; 1 Chr. 5:18).
(2.) A shield surrounding the person; the targe or round form; used once figuratively (Ps. 91:4).
(3.) A large shield protecting the whole body (Ps. 35:2; Ezek. 23:24; 26:8).
(4.) A lance or spear; improperly rendered "buckler" in the Authorized Version (1 Chr. 12:8), but correctly in the Revised Version "spear."
The leather of shields required oiling (2 Sam. 1:21; Isa. 21:5), so as to prevent its being injured by moisture. Copper (= "brass") shields were also in use (1 Sam. 17:6; 1 Kings 14:27). Those spoken of in 1 Kings 10:16, etc.; 14:26, were probably of massive metal.
The shields David had taken from his enemies were suspended in the temple as mementoes (2 Kings 11:10). (See ARMOUR>, SHIELD.)
BUCKLER [ISBE]
BUCKLER - buk'-ler: God is called a "buckler" (the Revised Version (British and American) "shield") to them that trust Him (Ps 18:2,30; 2 Sam 22:31; Prov 2:7).See ARMOR.
Also see definition of "Buckler" in Word Study