# διά
## Ancient Greek
### Alternative forms

* δια- (dia-) — as prefix
* διαί (diaí) — poetic
* ζά (zá) — Aeolic
* δι’ (di’) — apocopic

### Etymology

From *δισά (disá), from Proto-Indo-European *dwís (“twice, in two”) (related to δίς (dís, “twice”) and δύο (dúo, “two”)). Cognates include Latin dis- and Gothic 𐌳𐌹𐍃- (dis-).
The genitive is from the PIE ablative of comparison/extent. The accusative is from the pre-PIE directional and the PIE accusative of direct object.

### Pronunciation

* IPA: /di.á/ → /ðiˈa/ → /ðiˈa/
* (5th BCE Attic) IPA: /di.á/
* (1st CE Egyptian) IPA: /diˈa/
* (4th CE Koine) IPA: /ðiˈa/
* (10th CE Byzantine) IPA: /ðiˈa/
* (15th CE Constantinopolitan) IPA: /ðiˈa/

### Preposition

δῐᾰ́ • (dĭắ) (governs the genitive and accusative)
* [with genitive]
** (of a place)
*** in a line
*** through
*** in the midst of, between
*** along
*** at intervals of, at every
** (time)
*** between
*** after
*** every (interval of time)
** (causality)
*** through, by
*** (attested from 1st century BCE) out of (materials from which something is made)
* [with accusative]
** (of a place, poetic) through, among
** (time) during
** (causality)
*** thanks to, by aid of
*** because of
*** for the sake of

#### Derived terms

* διέκ (diék)
* δῐοξειῶν (dĭoxeiôn)

#### Descendants

* Greek: για (gia), διά (diá)

### Adverb

δῐᾰ́ • (dĭắ)
* throughout

### See also

* ἀπό (apó)

### References

* ↑ Pokorny, Julius (1959) Indogermanisches etymologisches Wörterbuch [Indo-European Etymological Dictionary] (in German), volume 1, Bern, München: Francke Verlag, page 228
* ↑ Beekes, Robert S. P. (2010) “διά”, in Etymological Dictionary of Greek (Leiden Indo-European Etymological Dictionary Series; 10), with the assistance of Lucien van Beek, Leiden, Boston: Brill, →ISBN, page 327

### Further reading

* “διά”, in Liddell & Scott (1940) A Greek–English Lexicon, Oxford: Clarendon Press
* “διά”, in Liddell & Scott (1889) An Intermediate Greek–English Lexicon, New York: Harper & Brothers
* “διά”, in Autenrieth, Georg (1891) A Homeric Dictionary for Schools and Colleges, New York: Harper and Brothers
* διά in Bailly, Anatole (1935) Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
* Bauer, Walter et al. (2001) A Greek–English Lexicon of the New Testament and Other Early Christian Literature, Third edition, Chicago: University of Chicago Press
* διά in Cunliffe, Richard J. (1924) A Lexicon of the Homeric Dialect: Expanded Edition, Norman: University of Oklahoma Press, published 1963
* διά in the Diccionario Griego–Español en línea (2006–2025)
* “διά”, in Slater, William J. (1969) Lexicon to Pindar, Berlin: Walter de Gruyter
* G1223 in Strong, James (1979) Strong’s Exhaustive Concordance to the Bible
* Woodhouse, S. C. (1910) English–Greek Dictionary: A Vocabulary of the Attic Language‎, London: Routledge & Kegan Paul Limited. about idem, page 2.account idem, page 7.across idem, page 9.agency idem, page 18.aid idem, page 20.along idem, page 25.because of idem, page 68.consequence idem, page 162.course idem, page 178.dint idem, page 225.during idem, page 256.fly idem, page 331.for idem, page 334.help idem, page 395.instrumentality idem, page 447.interval idem, page 453.owing to idem, page 587.reason idem, page 676.sake idem, page 732.skim idem, page 780.slip idem, page 784.through idem, page 871.throughout idem, page 871.

## Greek
### Alternative forms

* δι' (di') before vowel
* δια (dia) sometimes written without accent, as pronounced

### Etymology

Learnedly, from Ancient Greek δῐᾰ́. Doublet of για (gia).

### Pronunciation

* IPA: /ði̯a/, /ðʝa/ (pronounced with synizesis as one syllable; the accent placed at the word which follows)
* Old Hyphenation: δι‧ά
* Hyphenation: διά

### Preposition

διά • (diá)
* by, for, through
* divided by
    Antonym: επί (epí)
    δέκα διά πέντε ίσον δύοten divided by five equals two
* this is the name of the division symbol

#### Related terms

* διά- (diá-) prefix
* δια- (dia-) prefix
* δι- (di-) prefix, before vowel
* διαίρεση f (diaíresi, “the division”)
* διαιρώ (diairó, “to divide”, verb)

### Further reading

* διά, in Λεξικό της κοινής νεοελληνικής [Dictionary of Standard Modern Greek], Triantafyllidis Foundation, 1998 at the Centre for the Greek language