diaeresis

/daɪˈɛɹɪsɪs/

//daɪˈɛɹɪsɪs// noun

"diaeresis" is a 9-letter English headword indexed on PlainSpell.

The verdict

“diaeresis” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A separation of one syllable (especially a vowel which is a diphthong, that is, beginning with one sound and ending with another) into two distinct syllables; distraction.

Corpus desk

Index EN-diaeresis · diaeresis · English

diaeresis · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "D" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for diaeresis
PropertyValue
Headworddiaeresis
LanguageEnglish
Part of speechNoun
IPA/daɪˈɛɹɪsɪs/
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “diaeresis” in English

diaeresisfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

diaeresis is uncommon English outside the top frequency list, classed as anoun, transcribed /daɪˈɛɹɪsɪs/. Rarity is why readers land here mid-draft. 6 senses are on record.

No generated misspelling entries exist for diaeresis in our index, since its letter sequence doesn't invite the usual edit-distance slips. This entry stands alone in our confusable dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: PIE word *dwís Unadapted borrowing from Late Latin diaeresis (“distribution; division of a diphthong into two syllables”), from Ancient Greek δῐαίρεσῐς (dĭaíresĭs, “distribution, division; division of a poetic line when the end of a word and a metrical foo… The correct English form is diaeresis, spelled D-I-A-E-R-E-S-I-S.

Definition

  1. 1
    A separation of one syllable (especially a vowel which is a diphthong, that is, beginning with one sound and ending with another) into two distinct syllables; distraction.
  2. 2
    A separation of one syllable (especially a vowel which is a diphthong, that is, beginning with one sound and ending with another) into two distinct syllables; distraction.
  3. 3
    An occurrence of separate vowel sounds in adjacent syllables without an intervening consonant; a hiatus.
  4. 4
    A division, a separation.
  5. 5
    A natural break in rhythm when a word ends at the end of a metrical foot in a line of verse.
  6. 6
    An act of separating body parts or tissues which are normally together.

Recorded use

Wiktionary examples

These source excerpts show how diaeresis appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Synaeresis, the opposite of Diaëresis, is the throwing of two syllables into one; as, Seest for seëst. Looked for look-ed.
  2. Diæreſis is vvhen tvvo points ouer a vovvell diuide it from another vovvel, as bouë, queuë, read bou-e, queu-e, not bo-ue, que-ue.

Etymology

PIE word *dwís Unadapted borrowing from Late Latin diaeresis (“distribution; division of a diphthong into two syllables”), from Ancient Greek δῐαίρεσῐς (dĭaíresĭs, “distribution, division; division of a poetic line when the end of a word and a metrical foot coincide; division of a diphthong into two syllables”), from δῐαιρέω (dĭairéō, “to divide; to distinguish; to resolve a diphthong or contracted form”) + -σῐς (-sĭs, suffix forming abstract nouns or nouns of action, process, or result). Δῐαιρέω (Dĭairéō) is derived from δῐᾰ- (dĭă-, prefix meaning ‘across; through; in different directions’) (ultimately from Proto-Indo-European *dwís (“doubly, twice; in two”)) + αἱρέω (hairéō, “to grasp, seize, take”) (ultimately from Proto-Indo-European *ser- (“to grasp, seize, take”)).

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "diaeresis"?
"diaeresis" is spelled D-I-A-E-R-E-S-I-S. The IPA pronunciation is /daɪˈɛɹɪsɪs/.
What does "diaeresis" mean?
As a noun, "diaeresis" means: A separation of one syllable (especially a vowel which is a diphthong, that is, beginning with one sound and ending with another) into two distinct syllables; distraction.
How do you pronounce "diaeresis"?
The IPA (International Phonetic Alphabet) transcription for "diaeresis" is /daɪˈɛɹɪsɪs/. 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 "diaeresis"?
PIE word *dwís Unadapted borrowing from Late Latin diaeresis (“distribution; division of a diphthong into two syllables”), from Ancient Greek δῐαίρεσῐς (dĭaíresĭs, “distribution, division; division of a poetic line when the end of a word and a me... See the full etymology section above for more details.
Is PlainSpell free to use?
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Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list