from The Century Dictionary.
- noun A variable measure of length in use in India and neighboring countries. The covids of Batavia, Madras, Bombay, and Calcutta are stated at from 18 to 18.6 inches; those of Mocha and Sumatra at from 15 to 16 inches. The covid of China is the chin, equal to 14.1 inches.
Sorry, no etymologies found.