1) A large tub or vat in which malt was mashed, that is mixed with boiling water to form wort.
1341 unum cunam [sic] quć vocatur maskefat, York
1395 j vasc pro maskilvat vijd, Whitby
1485 Item j massh fatte, ijs ijd
j wort trogh de lapide, xxd, Clotherholme
1559 to Thomas Baytson one maskefat, one gylefate, a lead, Pontefract
1612 1 little tubb under the maskefatt, Brandsby.