—n.
1 a soft mixture.
2 a mixture of boiled grain, bran, etc., given warm to horses etc.
3 Brit. colloq. mashed potatoes (sausage and mash).
4 a mixture of malt and hot water used to form wort for brewing.
5 a soft pulp made by crushing, mixing with water, etc.
—v.tr.
1 reduce (potatoes etc.) to a uniform mass by crushing.
2 crush or pound to a pulp.
3 mix (malt) with hot water to form wort.
Derivatives:
masher n.
Etymology: OE masc f. WG, perh. rel. to MIX
Useful english dictionary. 2012.