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Etymology and origin of the English word mold

Merriam-Webster, Barnhart and Etymonline give separate entries to mold meaning a shape for casting, mold meaning a fungus, and mold meaning loose earth, with different origins.[1][2][3] Mold is the American spelling;[4][5] British English writes mould.[4][5]

Pronunciation

  • UK: /məʊld/[6]
  • US: /moʊld/[6]

mold1 shape, cast

Confidence
Established
Formation
Borrowing
First attested
c1200, Ancrene Riwle
Borrowed from
Old French modle via Middle English
Ultimate origin
Latin modulus

Etymology

This word is inherited from Middle English molde,[1][7] borrowed from Old French modle (“model, plan, copy; way, manner”) with transposed consonants,[3][8][9] also found as molle (modern moule),[2][1] from Latin modulus (“measure, model”),[3][7][2] a diminutive of modus (“measure, manner”),[3][7] from the root Proto-Indo-European *med- (“to take appropriate measures”).[3][7] Barnhart notes that it is a doublet of module.[2] The verb was formed from the noun in Middle English.[1][2][9]

Earliest recorded meaning

Fashion, form, nature, character: probably before 1200, in the Ancrene Riwle, according to Barnhart;[2] Etymonline dates this figurative sense to c1200,[3] Dictionary.com to 1175–1225, and Merriam-Webster gives the 13th century for "distinctive nature or character".[5][1]

Semantic evolution

The concrete sense, a pattern on which something is made or a form into which molten metal is poured, followed by about 1300, in Sir Tristrem,[2][3] and the Shorter Oxford records a mason's template from Middle English.[9] The phrase break the mold, so that no other like it can be made, was used figuratively from the 1560s,[3] and moulds for jellies and other food are recorded from the 1570s.[3] The verb meant at first to mix or knead, especially dough (about 1350),[2][3] and then to shape bread or form something into a particular shape (late 14th century);[3][9] the figurative sense, of forming a person's character, dates from about 1600.[3] The noun molding (1327) at first meant kneading, and only from 1643 an ornamental strip in architecture.[2] In Suffolk to be all of a mould was to have a strong family likeness, and in Scots a mould was the bone disc of a cloth-covered button.[10]

Timeline

  • c1200 – form, nature, character.[3][2]
  • c1300 – a form for casting molten metal.[3][2]
  • about 1350 – verb, to knead or mix.[2][3]
  • 1560s – break the mold.[3]
  • 1570s – a mould for jellies and other food.[3]
  • c1600 – verb, to shape a person's character.[3]

Modern meaning

Noun

  1. A hollow container into which a liquid or soft material, such as molten metal, plastic or jelly, is poured so that it sets in that shape.
  2. Something made or shaped in such a container.
  3. A frame or template on or around which something is built.
  4. Distinctive nature or character; a kind or type: a politician of the old mold.

Verb

  1. To make or shape something in a mold, or to give it a particular form: She molded the clay into a small bowl.
  2. To shape or influence the character or development of someone or something.
  3. (archaic) To knead dough.

Word family

  • molding
  • moldable
  • remold

mold2 fungus

Confidence
Probable
Formation
Derivation
First attested
before 1400, Cursor Mundi
Ultimate origin
Old Norse mygla

Etymology

This word is probably from Middle English moulde, the past participle of moulen (“to grow moldy”),[3][2][9][11] a verb of Scandinavian origin related to mygla (“to grow moldy”),[12][3][8] with mögla and mugle.[2][8] Barnhart thinks the verb may be related to mugga (“drizzle”) (see muggy),[2] and Etymonline suggests a Germanic base meaning wetness or slipperiness, from the root of mucus.[3] Merriam-Webster takes it as an alteration of mowle influenced by the earth word molde,[1] and Etymonline and Klein also allow some influence from that word.[3][8]

Earliest recorded meaning

A furry growth of fungus on decaying matter: before 1400, in Cursor Mundi, according to Barnhart;[2] Etymonline dates it to c1400,[3] and Merriam-Webster to the 14th century.[1] The verb moulen, to grow mouldy, is older: the Middle English Dictionary quotes it from the Ancrene Riwle (c1230).[12][2]

Semantic evolution

The modern verb to mold, formed from the noun, is recorded probably before 1500 in the sense of allowing something to go mouldy, and since the mid-16th century in the sense of becoming mouldy,[2][9] the use Merriam-Webster dates to 1530;[1] it took over from the older moulen.[2] The adjective moldy is recorded from 1570, replacing mowly (before 1398).[2] Spenser's use of the verb for a person rotting in idleness is now obsolete.[1] In Scots, Yorkshire and Lancashire dialect mould was also an adjective meaning mouldy.[10]

Timeline

  • c1230 – moulen, to grow mouldy.[12]
  • before 1398 – mowly, mouldy.[2]
  • before 1400 – a growth of fungus.[2]
  • before 1500 – verb, to let become mouldy.[2]
  • 1530 – verb, to become mouldy.[1]
  • 1570 – moldy.[2]

Modern meaning

Noun

  1. A furry or woolly growth of tiny fungi that forms on food, damp walls and other organic matter.
  2. A fungus that produces such a growth.

Verb

  1. To become covered with mold: The cheese had molded at the edges.

Word family

  • moldy

mold3 soil

Confidence
Established
Formation
Inherited
First attested
Old English (before 725)
Inherited from
Proto-Germanic *muldō via Middle English, Old English
Ultimate origin
Proto-Germanic *muldō

Etymology

This word is inherited from Middle English molde, inherited from Old English molde (“earth, dust, sand, soil; land, world”),[3][1][13][14] inherited from Proto-Germanic *muldō,[2][15][16] with molde, moude, molta (“dust, earth”), mold (“earth”) and 𐌼𐌿𐌻𐌳𐌰 (mulda, “dust”).[2][3][8][14] Orel and Klein explain it as an old participle, "that which is ground", from the root Proto-Indo-European *melh₂- (“to grind”),[16][8] so that it is related to meal, ground grain.[2][15]

Earliest recorded meaning

Loose earth, dust or soil: Old English, before 725.[2][15] Bosworth-Toller's examples include the dust of a holy place carried away for healing in Bede.[13]

Semantic evolution

From late Old English the word was used for the earth of the grave,[3][15] and since about 1300 also for the earth or dust out of which God made man and to which the body returns.[3] The sense "soil rich in humus, garden soil" is recorded from the 14th century,[15] and survives in leaf mold.[1] The mold for the surface of the earth, or the grave, lingered in literary and dialect use,[1] and Scottish and northern English dialects used the moulds for the grave.[10] The moldboard of a plough, which turns the earth, is recorded from 1508.[2] The verb, to cover the roots of plants with soil, is recorded from the early 17th century and is now chiefly American and dialect.[9][1] Etymonline quotes the Century Dictionary (1897) that mold is the proper spelling, like gold, although mould was still preferred in Britain.[3]

Timeline

  • before 725 – loose earth, dust, soil.[2]
  • late Old English – the earth of the grave.[3]
  • c1300 – the earth from which man was made.[3]
  • 14th century – soil rich in humus.[15]
  • 1508 – moldboard.[2]
  • early 17th century – verb, to earth up plants.[9]

Modern meaning

Noun

  1. Loose, soft soil that is rich in humus, suited to growing plants.
  2. (archaic, dialect) The ground; the earth of the grave.

Verb

  1. (chiefly US and dialect) To cover the roots of plants with soil; to earth up.

Word family

  • moldboard
  • leaf mold
  • molder

References

  1. ^ a b c d e f g h i j k l m n Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  2. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z 27 28 29 30 31 Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  3. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z 27 28 29 30 Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b Collins English Dictionary (2023), Glasgow: HarperCollins
  5. ^ a b c Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
  6. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  7. ^ a b c d The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  8. ^ a b c d e f Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  9. ^ a b c d e f g h Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  10. ^ a b c Wright, Joseph, ed. (1898–1905), The English Dialect Dictionary, 6 vols., Oxford: Henry Frowde; via EDD Online 4.0, University of Innsbruck (CC BY 4.0)
  11. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
  12. ^ a b c Kurath, Hans; Kuhn, Sherman M.; Lewis, Robert E., eds. (1952–2001), Middle English Dictionary, Ann Arbor: University of Michigan Press; online edition ed. Frances McSparran et al. (2000–2018)
  13. ^ a b Bosworth, Joseph; Toller, T. Northcote (1898), An Anglo-Saxon Dictionary, Oxford: Clarendon Press; Toller, T. Northcote (1921), Supplement
  14. ^ a b Holthausen, Ferdinand (1934), Altenglisches etymologisches Wörterbuch, Heidelberg: Carl Winter
  15. ^ a b c d e f Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  16. ^ a b Orel, Vladimir (2003), A Handbook of Germanic Etymology, Leiden / Boston: Brill

Related etymologies

  • pillow · also from Proto-Germanic
  • stall · also from Proto-Germanic
  • warmth · also from Proto-Germanic
  • foam · also from Proto-Germanic
  • worm · also from Proto-Germanic
  • dwarf · also from Proto-Germanic
  • deed · also from Proto-Germanic
  • crab · also from Proto-Germanic
Cite this entry

“Mold.” Etymologically, 22 Oct. 2026, etymologically.com/en/mold. Accessed 23 Oct. 2026.

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