# diaeresis
## English
### 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”)).
The plural is borrowed from Latin diaeresēs.

### Pronunciation

* Singular:
** (Received Pronunciation) IPA: /daɪˈɛɹɪsɪs/, /daɪˈɪəɹɪsɪs/
** Audio (Southern England):(file)
** (General American) IPA: /daɪˈɪəɹɪsɪs/, /daɪˈɛɹəsɪs/
** Hyphenation: di‧a‧e‧re‧sis
* Plural:
** (Received Pronunciation) IPA: /daɪˈɛɹɪsiːz/, /daɪˈɪəɹɪsiːz/
** (General American) IPA: /daɪˈɪəɹɪsiz/, /daɪˈɛɹəsiz/
** Hyphenation: di‧a‧e‧re‧ses

### Noun

diaeresis (plural diaereses)
* (linguistics, prosody)
** 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.
    Antonym: synaeresis
*** 1843, John Forbes, “Prosody”, in A Double Grammar of English and Gaelic, in which the Principles of Both Languages are Clearly Explained; […], Edinburgh: W. Whyte & Co. […], →OCLC, paragraph 7, page 363, column 1:Synaeresis, the opposite of Diaëresis, is the throwing of two syllables into one; as, Seest for seëst. Looked for look-ed.
*** (orthography) The diacritical mark consisting of two dots (¨) placed over a letter (especially the second of two consecutive vowels) to indicate that it is sounded separately, usually as a distinct syllable.
    Synonyms: trema, (informal) umlaut
    Coordinate term: umlaut
**** 1611, Randle Cotgrave, compiler, “Briefe Directions for Such as Desire to Learne the French Tongue. And First, of the Vowels, and Diphthongs.”, in A Dictionarie of the French and English Tongues, London: […] Adam Islip, →OCLC, signature Nnnn, recto, column 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.
**** 1841, William Corry, “Grammatical Terms, with Their Respective Marks and Explanations”, in An English Spelling Book, with Reading Lessons; for the Use of the Parish and Other Schools of New Brunswick, St. John, N.B.: […] Henry Chubb, […], →OCLC, page 8:The Diæresis is used to divide a diphthong into two syllables; as, Creätor.
**** 2024 September 26, Mark Brown, “Brontë sisters finally get their dots as names corrected at Westminster Abbey”, in Katharine Viner, editor, The Guardian‎, London: Guardian News & Media, →ISSN, →OCLC, archived from the original on 2024-10-05:An 85-year injustice has been rectified at Poets' Corner in Westminster Abbey with the corrected spelling of one of the greatest of all literary names. Reader, it is finally Brontë, not Bronte. An amended memorial to Charlotte, Emily and Anne Brontë was unveiled on Thursday with added diaereses (two dots) that ensure people pronounce it with two syllables. As if it rhymed with Monty, not font. The memorial was installed in 1939 and, for whatever reason, came without the diaereses that the Brontës used.
** An occurrence of separate vowel sounds in adjacent syllables without an intervening consonant; a hiatus.
* (figurative, rare) A division, a separation.
* (prosody) A natural break in rhythm when a word ends at the end of a metrical foot in a line of verse.
* (surgery, archaic) An act of separating body parts or tissues which are normally together.
** 1728, E[phraim] Chambers, “Diæresis”, in Cyclopædia: Or, An Universal Dictionary of Arts and Sciences; […] In Two Volumes, volumes I (A–H), London: […] James and John Knapton [et al.], →OCLC, page 211, column 1:There are four manners of performing the Diæreſis: viz. by Cutting, Pricking, Tearing, Dravving, and Burning.

#### Usage notes

* Properly speaking, the terms diaeresis and umlaut are not interchangeable, even though the latter is often a visually identical diacritical mark. As explained in sense 1.1.1, a diaeresis indicates that two consecutive letters (usually vowels) are to be sounded separately. An umlaut over a letter indicates that the sound of a single vowel denoted by that letter is different from the sound denoted by the letter written without an umlaut; for example, in German schon is pronounced /ʃoːn/, while schön is pronounced /ʃøːn/. However, some speakers use the term umlaut to refer to a diaeresis.
* In English, it is common to spell words without using diaereses, for example, naive instead of naïve.

#### Alternative forms

* diaresis, dieresis (US)
* diæresis (archaic)
* diaëresis (nonstandard, rare)

#### Related terms

* exaeresis
* prosthaphaeresis, prosthaphæresis
* synaeresis, synæresis, syneresis

#### Translations
### References

* ↑ “diaeresis, n.”, in OED Online ⁠, Oxford: Oxford University Press, June 2024; “diaeresis, n.”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.

### Further reading

* diaeresis (diacritic) on Wikipedia.Wikipedia
* diaeresis (prosody) on Wikipedia.Wikipedia
* vowel hiatus on Wikipedia.Wikipedia
* diaeresis (disambiguation) on Wikipedia.Wikipedia
* diaeresis, dieresis, diaresis at the Google Books Ngram Viewer.

### Anagrams

* side raise

## Latin
### Etymology

Borrowed from Ancient Greek δῐαίρεσῐς (dĭaíresĭs).

### Pronunciation

* (Classical Latin) IPA: /diˈae̯.re.sis/, [d̪iˈäe̯rɛs̠ɪs̠]
* (modern Italianate Ecclesiastical) IPA: /diˈe.re.sis/, [d̪iˈɛːres̬is]

### Noun

diaeresis f (genitive diaeresis or diaereseōs or diaeresios); third declension
* (grammar) diaeresis (division of a diphthong into two vowels in consecutive syllables)
** AD 98–138, Velius Longus (aut.), T.H.G. Keil (ed.), Liber de orthographia in Grammatici Latini VII (1880), p. 57, ll. 21–28:
    sed et quidam in hac quoque scriptione voluerunt esse differentiam, ut pluralis quidem numeri nominativus casus per a et e scriberetur, genetivus vero singularis per a et i, hoc quoque argumentantes, quod diaeresis, sive dialysis illa dicetur, a nominativo plurali non fit, sed ex singulari obliquo, cum dicitur  ‘ a u l a i   i n   m e d i o ’  et //  d i v e s   e q u u m ,   d i v e s   p i c t a i   v e s t i s   e t   a u r i ,  // item rei nostrai, faciendai, magnai.(please add an English translation of this quotation)
** circa AD 384, Ser. Honoratus (aut.), G. Thilo & H. Hagen (eds.), In Vergilii Aeneidos commentarii in Servii Grammatici qui feruntur in Vergilii carmina commentarii II (1884), bk vii, l. 464 (p. 160, ll. 1–9):
    Fvrit intvs aqvai fvmidvs id est aquae amnis: nec inmerito; nam potest esse et alterius rei amnis, “ut fluvios videt ille cruoris”. Hanc autem diaeresin Tucca et Varius fecerunt: nam Vergilius sic reliquerat “furit intus aquae amnis” et “exuberat amnis”: quod satis asperum fuit. Notandum quod in toto Vergilio non reperiuntur nisi quattuor diaereses, hoc loco, et in tertio ⟨354⟩, ut “aulai medio libabant pocula Bacchi”, et in VI. ⟨747⟩ ut “aurai simplicis ignem”, et in IX. ⟨26⟩ “dives pictai vestis et auri”.(please add an English translation of this quotation)
* (rhetoric) distribution
    (Can we find and add a quotation of Julius Valerius Alexander Polemius to this entry?)
    (Can we find and add a quotation of Tyrannius Rufinus to this entry?)

#### Declension

Third-declension noun (Greek-type, i-stem, i-stem).
$^1$Found sometimes in Medieval and New Latin.

#### Synonyms

* (rhetoric: distribution): distribūtiō (pure Latin)

#### Antonyms

* (antonym(s) of “grammar: diaeresis”): synaeresis

#### Descendants

* → English: diaeresis
* → French: diérèse
* → Portuguese: diérese
* → Spanish: diéresis

### References

* “dĭaerĕsis”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
* dĭærĕsis in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette, page 517/3.
* “diaeresis” on page 535/3 of the Oxford Latin Dictionary (1st ed., 1968–82)