Mummers' plays are folk plays performed by troupes of amateur actors, traditionally all male, known as mummers or guisers (also by local names such as rhymers, pace-eggers, soulers, tipteerers, wrenboys, and galoshins). Historically, mummers' plays consisted of informal groups of costumed community members that visited from house to house on various holidays. Today the term refers especially to a play in which a number of characters are called on stage, two of whom engage in a combat, the loser being revived by a doctor character. This play is sometimes found associated with a sword dance though both also exist in Britain independently.
Mumming spread from the British Isles to a number of former British colonies. It is sometimes performed in the street but more usually during visits to houses and pubs. It is generally performed seasonally or annually, often at Christmas, Easter or on Plough Monday, more rarely on Halloween or All Souls' Day, and often with a collection of money, in which the practice may be compared with other customs such as those of Halloween, Bonfire Night, wassailing, pace egging and first-footing at new year.
Although the term mummer has been in use since the Middle Ages, no scripts or details survive from that era and the term may have been used loosely to describe performers of several different kinds. The earliest evidence of mummers' plays as they are known today is from the mid- to late 18th century. Mummers' plays should not be confused with the earlier mystery plays.
The word mummer is sometimes explained to derive from Middle English mum ("silent") or Greek mommo ("mask"), but is more likely to be associated with Early New High German mummer ("disguised person", attested in Johann Fischart) and vermummen ("to wrap up, to disguise, to mask one's face"), which itself is derived from or came to be associated with mummen (first attested already in Middle High German by a prohibition in Mühlhausen, Thuringia, 1351) and mum(en)schanz, (Hans Sachs, Nuremberg, 16th century), these latter words originally referring to a game or throw (schanz) of dice.