The measurement you are referring to to is a nail. 1 nail = 3 digits = 21⁄4 inches = 1⁄16 yard = 5.715cm
The measurement dates back to Anglo-Saxon England. The Anglo-Saxon system started with the most basic unit of measurement being a poppyseed, which was approximately 1/4 barleycorn.
3 barleycorns (the length of 3 corns) = 1 inch
This archaic measure is still the basis for current UK and U.S. shoe sizes, with the largest shoe size taken as thirteen inches (a size 13) and then counting backwards in barleycorn units, although the original derivation was: less than 13 barleycorns: infants with no shoes; 13 to 26 barleycorns: children's sizes 1 to 12; 26 to 39 barleycorns: men's sizes 1 to 13.
Other units of measurement were:
The digit: 3/4 inch
The finger: 7/8 inch
Palm: 3 inches,
Hand: 4 inches,
Shaftment: 61/2 inches (reduced to 6 inches after 1066),
Span: = 3 palms = 9 inches,
Foot: originally 13 inches, 12 inches after 1066,
Cubit: 18 inches
Ell: = 20 nails = 45 inches = 11/4 yards,
Yard (introduced after 1066) = 3 feet = 36 inches
Fathom: 6 feet
Rod: Originally 20 feet (260 inches), after 1066 redefined as 161/2 feet, (198 inches)
Chain: = 4 rods,
Furlong: Originally the distance a plough team could be driven without rest. Now deemed to be 660 feet, 40 rods or 10 chains,
Mile: Originally like the Roman mile set at 5000 feet. The Roman mile was divided into 8 stadia. The closest English equivalent was the furlong, so the mile was increased to 5,280 feet to accommodate 8 furlongs,
It is called duration.
The length of a leaf is typically referred to as the leaf blade length.
The distance from a lens to the focal point is called the focal length.
circumrenceThe length around a circle is called the circumference
It is called the circumference.
It is called its circumference!
A length of water over where the wind has blown is called a Fetch.
A length of round wood is called DOWEL.
The longer side is usually called "length".
The length of time a is called that an orginism is experctd to live is ab stimulus
Length and breath or length and width.
The length is called the astronomical unit.