# γωνία
## Ancient Greek
### Etymology

From a derivative of γόνυ (gónu, “knee”), ultimately from Proto-Indo-European *ǵónu (“id”). The long ω (ō) is from the regular Doric development of an unattested *γονϝ-ία (*gonw-ía), as the paradigm of *ǵónu shows no lengthened grade (thus precluding a derivation from such an ablaut), while most mathematicians in Greek antiquity (who were most likely responsible for the word's formation) were Pythagorean (and thus wrote in Doric).

### Pronunciation

* IPA: /ɡɔː.ní.aː/ → /ɣoˈni.a/ → /ɣoˈni.a/
* (5th BCE Attic) IPA: /ɡɔː.ní.aː/
* (1st CE Egyptian) IPA: /ɡoˈni.a/
* (4th CE Koine) IPA: /ɣoˈni.a/
* (10th CE Byzantine) IPA: /ɣoˈni.a/
* (15th CE Constantinopolitan) IPA: /ɣoˈni.a/

### Noun

γωνίᾱ • (gōníā) f (genitive γωνίᾱς); first declension
* (geometry) corner, angle
* joiner's square
* cornerstone

#### Derived terms

* ἄγωνος (ágōnos)
* ἀντιγώνιος (antigṓnios)
* ἀπειρόγωνος (apeirógōnos)
* γώνιος (gṓnios)
* διαγώνιος (diagṓnios)
* ἐγγώνιος (engṓnios)
* εἰκοσάγωνος (eikoságōnos)
* ἑκκαιδεκάγωνος (hekkaidekágōnos)
* ἑνδεκάγωνος (hendekágōnos)
* ἐννεάγωνος (enneágōnos)
* ἑξάγωνος (hexágōnos)
* ἐπιγώνιος (epigṓnios)
* ἑπτάγωνος (heptágōnos)
* εὐγώνιος (eugṓnios)
* ἡμιτετράγωνος (hēmitetrágōnos)
* ἡμιτρίγωνος (hēmitrígōnos)
* ἰσοτετράγωνος (isotetrágōnos)
* κοιλογώνιος (koilogṓnios)
* ὀκτάγωνος (oktágōnos)
* ὀξυγώνιος (oxugṓnios)
* ὁσάγωνος (hoságōnos)
* παραγώνιος (paragṓnios)
* πεντάγωνος (pentágōnos)
* πολύγωνος (polúgōnos)
* τεσσαρεσκαιδεκάγωνος (tessareskaidekágōnos)
* τετράγωνος (tetrágōnos)
* τρεισκαιδεκάγωνος (treiskaidekágōnos)
* τρίγωνος (trígōnos)
* φιλογώνιος (philogṓnios)
* χιλιάγωνος (khiliágōnos)

#### Descendants

* Greek: γωνία (gonía)
* → Persian: گونیا (guniyâ) (or via Syriac)
** → Ottoman Turkish: گونیه (günye, gönye)
*** Turkish: gönye
*** → Azerbaijani: günya
*** → Romanian: ghiunie
*** → Serbo-Croatian:
    Cyrillic script: ђу̀нија
    Latin script: đùnija
* → Classical Syriac: ܓܘܢܝܐ (gōnyā)

### References

* ↑ Beekes, Robert S. P. (2010) “γωνία”, in Etymological Dictionary of Greek (Leiden Indo-European Etymological Dictionary Series; 10), with the assistance of Lucien van Beek, Leiden, Boston: Brill, →ISBN, page 294

### Further reading

* “γωνία”, in Liddell & Scott (1940) A Greek–English Lexicon, Oxford: Clarendon Press
* “γωνία”, in Liddell & Scott (1889) An Intermediate Greek–English Lexicon, New York: Harper & Brothers
* γωνία in Bailly, Anatole (1935) Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
* γωνία in the Diccionario Griego–Español en línea (2006–2025)
* G1137 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. angle idem, page 29.corner idem, page 174.square idem, page 807.

## Greek
### Etymology

Borrowed from Ancient Greek γωνία (gōnía).

### Noun

γωνία • (gonía) f (plural γωνίες)
* (geometry) angle
* corner
* viewpoint

#### Coordinate terms

* αμβλεία f (amvleía, “obtuse”)
* ανάκλασης f (anáklasis, “reflex”)
* ευθύς f (efthýs, “straight”)
* οξεία f (oxeía, “acute”)
* ορθός f (orthós, “right”)
* περιγώνια f (perigónia, “perigon”)

#### Related terms

* see: αγκωνή f (agkoní, “corner”)

#### Descendants

* Ottoman Turkish: گونیه (günye)

#### Further reading

* γωνία on the Greek Wikipedia.Wikipedia $^{el}$