Definition of high-duty 

1 of a machine : being capable of doing a large amount of work in a specified time a high-duty drill

2 : constituting products subject to a relatively high tax high-duty goods

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First Known Use of high-duty

1740, in the meaning defined at sense 2

History and Etymology for high-duty

from the phrase high duty

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The first known use of high-duty was in 1740

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a soft lustrous wool fabric with mohair

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