ὀρχήστρα

See also: ορχήστρα

Ancient Greek

From ὀρχέομαι (orkhéomai, “to dance”) +‎ -τρᾰ (-tră, “a suffix used to form instrument nouns (pl.)”).^[1]

ὀρχήστρᾱ • (orkhḗstrā) f (genitive ὀρχήστρᾱς); first declension

First declension of ἡ ὀρχήστρᾱ; τῆς ὀρχήστρᾱς (Attic)

Case / #	Singular	Dual	Plural
Nominative	ἡ ὀρχήστρᾱ hē orkhḗstrā	τὼ ὀρχήστρᾱ tṑ orkhḗstrā	αἱ ὀρχῆστραι hai orkhêstrai
Genitive	τῆς ὀρχήστρᾱς tês orkhḗstrās	τοῖν ὀρχήστραιν toîn orkhḗstrain	τῶν ὀρχηστρῶν tôn orkhēstrôn
Dative	τῇ ὀρχήστρᾳ tēî orkhḗstrāi	τοῖν ὀρχήστραιν toîn orkhḗstrain	ταῖς ὀρχήστραις taîs orkhḗstrais
Accusative	τὴν ὀρχήστρᾱν tḕn orkhḗstrān	τὼ ὀρχήστρᾱ tṑ orkhḗstrā	τᾱ̀ς ὀρχήστρᾱς tā̀s orkhḗstrās
Vocative	ὀρχήστρᾱ orkhḗstrā	ὀρχήστρᾱ orkhḗstrā	ὀρχῆστραι orkhêstrai
Notes:	This table gives Attic inflectional endings. For declension in other dialects, see Appendix:Ancient Greek dialectal declension.

^ Beekes, Robert S. P. (2010), “ὀρχέομαι”, in Etymological Dictionary of Greek (Leiden Indo-European Etymological Dictionary Series; 10), with the assistance of Lucien van Beek, Leiden, Boston: Brill, →ISBN, page 1115: “DER > line 5 > 3. the nomen loci ὀρχ-ήστρα [f.] 'dancing-room, orchestra'”

“ὀρχήστρα”, in Liddell & Scott (1940), A Greek–English Lexicon, Oxford: Clarendon Press
“ὀρχήστρα”, in Liddell & Scott (1889), An Intermediate Greek–English Lexicon, New York: Harper & Brothers
ὀρχήστρα in Bailly, Anatole (1935), Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
ὀρχήστρα, in ΛΟΓΕΙΟΝ [Logeion] Dictionaries for Ancient Greek and Latin (in English, French, Spanish, German, Dutch and Chinese), University of Chicago, since 2011