rgyang grags
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རྒྱང་གྲགས
furlong, 500 gzhu 'dom/ bow-lengths, "mile", a krosha, calling distance [Tse]; 2) call from far away; 3) potter's tool for making soft clay articles [IW]
about 2 miles, reach of hearing, two thousand cubits, ear-shot, krosa, from afar [JV]
a distance of approx. 2 miles; 'furlong', [500 gzhu 'dom. five hundred gzhu 'dom is one rgyang grogs a "mile", calling distance [RY]
Skt. krośa, a unit of distance. In Hindi it is known as kos (कोस), also spelled coss, koss, kosh, krosh, and krosha. This is from the Sanskrit क्रोश krośa, which means "to call", as the unit was supposed to represent the distance at which another human could be heard. It is an ancient Indian subcontinental standard unit of distance, in use since at least 4 BCE. According to the Artha-śāstra (a text dating back as early as the 2nd century BCE), a krośa or kos is about 200 meters or 0.125 miles. Another conversion is based on the Mughal emperor Akbar who standardized the unit to 5000 guz in the Ain-i-Akbari. The British in India standardized Akbar's guz to 33 inches, making the kos approximately 4191 meters. Another conversion suggested a kos to be approximately 2 English miles. [Erick Tsiknopoulos]