Mum's the word is a popular

English English usually refers to: * English language * English people English may also refer to: Culture, language and peoples * ''English'', an adjective for something of, from, or related to England * ''English'', an Amish ter ...

idiom An idiom is a phrase or expression that largely or exclusively carries a Literal and figurative language, figurative or non-literal meaning (linguistic), meaning, rather than making any literal sense. Categorized as formulaic speech, formulaic ...

. It is related to an expression used by

William Shakespeare William Shakespeare ( 23 April 1564 – 23 April 1616) was an English playwright, poet and actor. He is widely regarded as the greatest writer in the English language and the world's pre-eminent dramatist. He is often called England's nation ...

, in ''

Henry VI, Part 2 ''Henry VI, Part 2'' (1591) is a Shakespearean history play about King Henry VI of England's inability to quell the bickering of his noblemen, the death of his trusted advisor Humphrey, Duke of Gloucester, and the political rise of Richard of ...

''. The word "mum" is an alteration of momme, which was used between 1350 and 1400 in Middle English with very close to the same meaning, "be silent; do not reveal".

Meaning

"Mum's the word" means to keep silent or quiet. ''Mum'' is a

Middle English Middle English (abbreviated to ME) is a form of the English language that was spoken after the Norman Conquest of 1066, until the late 15th century. The English language underwent distinct variations and developments following the Old English pe ...

word meaning 'silent', and may be derived from the ''

mummer Mummers were bands of men and women from the medieval to early modern era who (during public festivities) dressed in fantastic clothes and costumes and serenaded people outside their houses, or joined the party inside. Costumes were varied and mi ...

'' who acts without speaking. Note the similar English word
mime
(

Old English Old English ( or , or ), or Anglo-Saxon, is the earliest recorded form of the English language, spoken in England and southern and eastern Scotland in the Early Middle Ages. It developed from the languages brought to Great Britain by Anglo-S ...

"mīma", Latin "mimus") meaning silent actor or imitator.

Origin

The origins of the phrase can be traced back to the fourteenth century and William Langland's narrative poem, ''

Piers Plowman ''Piers Plowman'' (written 1370–86; possibly ) or ''Visio Willelmi de Petro Ploughman'' (''William's Vision of Piers Plowman'') is a Middle English allegorical narrative poem by William Langland. It is written in un-rhymed, alliterative ...

'': It can also be seen in popular fifteenth-century

Towneley Plays The Wakefield or Towneley Mystery Plays are a series of thirty-two mystery plays based on the Bible most likely performed around the Feast of Corpus Christi probably in the town of Wakefield, England during the Late Middle Ages until 1576. It is ...

OED The ''Oxford English Dictionary'' (''OED'') is the principal historical dictionary of the English language, published by Oxford University Press (OUP), a University of Oxford publishing house. The dictionary, which published its first editio ...

The phrase notably appears in Shakespeare's ''

'', Act 1, Scene 2:

References

{{English-lang-stub English-language idioms