The thick-iron ferrule is worn down, so it is evident that he has done a great amount of walking with it.
Arthur Conan Doyle, The Hound of Baskervilles
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Dictionary
Merriam-Webster
— a ring or cap usually of metal put around a slender shaft (such as a cane or a tool handle) to strengthen it or prevent splitting
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Macmillan
— a piece of metal or rubber fixed to the end of a stick or post to prevent it from being damaged
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Other Word Forms
ferrules
Usage
1 use of ‘ferrule’ in The Hound of the Baskervilles, by Arthur Conan Doyle