Shaftment
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The shaftment is an obsolete unit of length defined since the 12th century as 6 inches, which nowadays is exactly Template:Cvt. A shaftment was traditionally the width of the fist and outstretched thumb. The lengths of poles, staves, etc. can be easily measured by grasping the bottom of the staff with thumb extended and repeating such hand over hand grips along the length of the staff.
History
It occurs in Anglo-Saxon written records as early as 910 and in English as late as 1474. After the modern foot came into use in the twelfth century, the shaftment was reinterpreted as exactly Template:1/2 foot or Script error: No such module "convert"..
Spelling and etymology
Other spellings include schaftmond and scaeftemunde, and shathmont. It is derived from Old English Script error: No such module "Lang"., in turn from Template:Langx ('shaft') and Old English Script error: No such module "Lang"., from the Proto-Germanic Script error: No such module "Lang"., in turn from Template:Langx ('hand').
Two shaftments make a Template:Lang for.
This unit has mostly fallen out of use, as have others based on the human arm: digit (<templatestyles src="Fraction/styles.css" />1⁄8 shaftment), finger (<templatestyles src="Fraction/styles.css" />7⁄48 shaftment), palm (Template:1/2 shaftment) hand (Template:2/3 shaftment), span (1.5 shaftments), cubit (3 shaftments) and ell (7.5 shaftments).
References
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Further reading
- Units: S University of North Carolina at Chapel Hill - How Many? - A Dictionary of Units of Measurement
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