Meanings
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1
noun
historical: a small round shield held in the hand or worn on the arm for parrying blows
The swordsman caught the blow on his buckler and counterattacked.
Thesaurus
Etymology
From Middle English bukler and Old French bocler ("shield, shield boss"), from Medieval Latin buccularius ("having a boss"), based on Latin buccula. A buckler was smaller than a full shield; swashbuckler originally evoked a fighter noisily striking a sword against one.