local. [Derivation unknown.] A portion (of grain, etc.) left in a sack or bag; a small remnant of a larger quantity.
1847–78. Halliwell, Cotchel, a sack partly full. South. [So 1881 in I. of Wight Gloss.; 1888 Berksh. Gloss. (E. D. S.).]
c. 1870. Kentish dial. (from correspt.), I have gathered all the cotchels of salt petre together and put them into one bag.
1890. Correspt. fr. London, ‘Cotchell’ is a word in use on the Corn Exchange in London … to denote a small remnant of a larger quantity…. It may be applied to a bushel left from a sack or … 100 quarters left out of a cargo.
