The Collaborative International Dictionary
Mease
Mease \Mease\, n. [Cf. G. mass measure.] Five hundred; as, a mease of herrings. [Prov. Eng.]
Wiktionary
mease
Etymology 1 n. (context UK dialect dated English) A measure of varying quantity, often five or six (long hundred or short hundred) hundred, used especially when counting herring. Etymology 2
n. (lb en obsolete) A mess, a mese: a meal. Etymology 3
n. (lb en obsolete) A dwelling or messuage.