οὐραχός

Ancient Greek

Etymology

Probably related to οὐρά (ourá, “tail, rear”), with a suffix -αχος (-akhos) of indeterminate origin which Beekes identifies as Pre-Greek. Compare also οὐρίαχος (ouríakhos, “butt-end of the spear”).^[1]

Pronunciation

(5^th BCE Attic) IPA^(key): /uː.ra.kʰós/
(1^st CE Egyptian) IPA^(key): /u.raˈkʰos/
(4^th CE Koine) IPA^(key): /u.raˈxos/
(10^th CE Byzantine) IPA^(key): /u.raˈxos/
(15^th CE Constantinopolitan) IPA^(key): /u.raˈxos/

Noun

οὐρᾰχός • (ourakhós) m (genitive οὐρᾰχοῦ); second declension

(anatomy) urachus, a foetal organ connected with the bladder
apex of the heart
(in the plural) outer ends of the eyebrows
point of a drill or borer

Inflection

Second declension of ὁ οὐρᾰχός; τοῦ οὐρᾰχοῦ (Attic)

Case / #	Singular	Dual	Plural
Nominative	ὁ οὐρᾰχός ho ourakhós	τὼ οὐρᾰχώ tṑ ourakhṓ	οἱ οὐρᾰχοί hoi ourakhoí
Genitive	τοῦ οὐρᾰχοῦ toû ourakhoû	τοῖν οὐρᾰχοῖν toîn ourakhoîn	τῶν οὐρᾰχῶν tôn ourakhôn
Dative	τῷ οὐρᾰχῷ tôi ourakhôi	τοῖν οὐρᾰχοῖν toîn ourakhoîn	τοῖς οὐρᾰχοῖς toîs ourakhoîs
Accusative	τὸν οὐρᾰχόν tòn ourakhón	τὼ οὐρᾰχώ tṑ ourakhṓ	τοὺς οὐρᾰχούς toùs ourakhoús
Vocative	οὐρᾰχέ ourakhé	οὐρᾰχώ ourakhṓ	οὐρᾰχοί ourakhoí
Notes:	This table gives Attic inflectional endings. For declension in other dialects, see Appendix:Ancient Greek dialectal declension.

Derived terms

οὐραχοειδής (ourakhoeidḗs)

Descendants

→ English: urachus

References

^ Beekes, Robert S. P. (2010) “οὐρά (> ETYM)”, in Etymological Dictionary of Greek (Leiden Indo-European Etymological Dictionary Series; 10), with the assistance of Lucien van Beek, Leiden, Boston: Brill, →ISBN, pages 1127-8