1) A noun with various meanings, all associated with ‘measure’. It was often a unit of measurement, equivalent in some cases to one bushel, or to more than one depending on the commodity.
1410 ij scotells, iiij buschels et j met, York
1642 when wee sende a bushel of corne to the mill, wee putte it in a mette-poake
when we sende a mette to the mill, wee putte it into a 3 bushell-secke, Elmswell. It occurs frequently in connection with farm or garden produce: 1522 a mette of whete, Ledsham
1549 a met of barlie, South Milford
1581 9 meates of pease, Anston. Coal that was shipped into east Yorkshire was often measured by the met: 1490 de j lez mett of collys iijd, York
1542 three mettes coals, Bridlington
1706 a water met of coal
that is coal brought by water, Beverley. The met could also be a legally-binding standard measure: 1573 the mills, the hoppers and the troughs and all other things concerning the safe guard of mens corn and meal, with a lawful mette, Doncaster.