Longman Dictionary of Contemporary English homepage

Date: 1600-1700
Origin: verrel (15-19 centuries) (influenced by Latin ferrum 'iron'), from Latin viriola 'small band worn around the arm'

ferrule

 noun
     
fer‧rule [countable] technical
a piece of metal or rubber put on the end of a stick to make it stronger
Definition from the Longman Dictionary of Contemporary English
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