moulder

/ˈməʊldə/

//ˈməʊldə// verb

"moulder" is a 7-letter English headword indexed on PlainSpell.

The verdict

“moulder” is uncommon English (frequency #82,562 among 36,575 “M” headwords), classed as a verb. The kind of spelling people second-guess.

#82,562
frequency rank, English
36,575
“M” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Often followed by away or down: to cause (something) to decay or rot, or to crumble to pieces.

Key facts for moulder
PropertyValue
Headwordmoulder
LanguageEnglish
Part of speechVerb
IPA/ˈməʊldə/
Letters7
Frequency rank#82,562
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “moulder” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). moulder lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

moulder is uncommon English at frequency #82,562 among 36,575 “M” headwords, classed as averb, transcribed /ˈməʊldə/. Rarity is why readers land here mid-draft. 5 senses are on record.

No generated misspelling entries exist for moulder in our index, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From mould (“loose friable soil; rotting earth regarded as the substance of the human body”) + -er (suffix forming frequentative verbs), probably influenced by mould (“furry growth of fungi”). Mould is derived from Middle English mold, molde (“loose friable… The correct English form is moulder, spelled M-O-U-L-D-E-R.

Definition

  1. 1
    Often followed by away or down: to cause (something) to decay or rot, or to crumble to pieces.
  2. 2
    To cause (someone or something) to die away or disappear.
  3. 3
    Often followed by away: to decay or rot, or to crumble to pieces.
  4. 4
    To die away, to disappear.
  5. 5
    Often followed by away: of a group of people (especially an army): to diminish in number; to dwindle.

Etymology

From mould (“loose friable soil; rotting earth regarded as the substance of the human body”) + -er (suffix forming frequentative verbs), probably influenced by mould (“furry growth of fungi”). Mould is derived from Middle English mold, molde (“loose friable soil, dirt, earth; earth as the substance out of which God made man, and to which the human body decays into after death”), from Old English molde (“earth, soil”), from Proto-Germanic *muldō (“dirt, soil; furry growth of fungi, mould”), from Proto-Indo-European *melh₂- (“to crush, grind”).

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "moulder"?
"moulder" is spelled M-O-U-L-D-E-R. The IPA pronunciation is /ˈməʊldə/.
What does "moulder" mean?
As a verb, "moulder" means: Often followed by away or down: to cause (something) to decay or rot, or to crumble to pieces.
How do you pronounce "moulder"?
The IPA (International Phonetic Alphabet) transcription for "moulder" is /ˈməʊldə/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "moulder"?
From mould (“loose friable soil; rotting earth regarded as the substance of the human body”) + -er (suffix forming frequentative verbs), probably influenced by mould (“furry growth of fungi”). Mould is derived from Middle English mold, molde (“loo... See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “moulder”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is M-O-U-L-D-E-R - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈməʊldə/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list