ὄρρος

English (LSJ)

ὁ,

   A end of the os sacrum (cf. ὀρροπύγιον), Gal.19.127, Sch.Ar. Pl.122, Moer.p.284 P., Ath.13.565f; but Ammon. (Diff.p.27) identifies it with ταῦρος 111, cf. Poll.2.173 ; = τράμις, Ruf.Onom.101.    2 generally, rump, Ar.Ra.222, Pax1239, Lys.964, etc. (The orig. form was prob. ὄρσος (contained in Ion. ὀρσοπύγιον, v. ὀρροπ-, and perh. in ὀρσοθύρη), cf. OE. ears, OHG. ars, etc.: akin also to οὐρά.)

Greek (Liddell-Scott)

ὄρρος: (Β), ὁ, τὸ ἄκρον τοῦ ἱεροῦ ὀστοῦ (πρβλ. ὀρροπύγιον), Γαλην. Λεξ. Ἱππ., Σχόλ. εἰς Ἀριστ. Πλ. 122, Μοῖρις 284· ἀλλ’ ὁ Ἀμμώνιος ταυτίζει τὴν λέξιν πρὸς τὸ ταῦρος ΙΙΙ, πρβλ. Πολυδ. Β΄, 173. 2) καθόλου πυγή, γλουτός, Ἀριστοφ. Βάτρ. 222, Εἰρ. 1239, Λυσ. 964, κτλ. Ὁ ἀρχικὸς τύπος ἦτο πιθ. ὄρσος, πρβλ. Ἀγγλο-Σαξον. œrs, κτλ.· Ἀρχ. Γερμ. ars, κτλ.· ὡσαύτως συγγενὲς τῷ οὐρά, ἀλλ’ οὐχὶ τῷ ὀρρωδέω.)

French (Bailly abrégé)

ου (ὁ) :
extrémité de la colonne vertébrale, sacrum ; en parl. d’animaux croupion.
Étymologie: cf. οὐρά.

Greek Monotonic

ὄρρος: ὁ, το άκρο του οστού κόκκυγας, όπου βγαίνουν τα φτερά του πουλιού, σε Αριστοφ.

Russian (Dvoretsky)

ὄρρος: ὁ
1) анат. зад или копчик Luc.;
2) (у птиц) гузка Arph.

Frisk Etymological English

Grammatical information: m.
Meaning: rump, arse (Ar.), end of the os sacrum (Gal.).
Compounds: As 1. member in ὀρρο-πύγ-ιον, Ion. ὀρσο-, s. πυγή. As 2. member in παλίν-ορσος moving back (Γ 33, Emp.; -ρρ- Ar. Ach. 1179), s. Wackernagel Unt. 226; prob. also in ἄψορρος, s. v.
Derivatives: ὀρρώδης belonging to the rump (Hp., Gal.), ὀρροχμόν ἔσχατον, ἄκρον H., after νεο-χμός(?), s.v. and Belardi Doxa 3, 216f. w. lit. (wrong Specht KZ 66, 199f.).
Origin: IE [Indo-European] [340] *h₁ers-, *h₁ors- hindmost
Etymology: Old inherited expression for hindmost, which was avoided by the epic for its status (Wackernagel Unt. 224 ff.), identical with Germ., e.g. OHG ars Arsch', Arm. oṙ, pl. oṙ-k` (i-st.): IE *ors-o-, *ors-i-; besides OIr. err tail < *h₁ersā. Phönetically unclear is Hitt. arraš hindmost; uncertain hypothesis by Neumann KZ 77, 79ff. (w. lit.). Against ὄρρος from *ὄρσος Forbes Glotta 36, 264ff. -- The word can be understood as enlargement of an s-stem *or(o)s-, *er(o)s- elevation and can then belong closely together with ὄρος mountain (s.v.). Further lit. in Bq, WP. 1, 138, Pok. 340. -- Cf. ὀρσοθύρη and οὑρά.

Middle Liddell

ὄρρος, ὁ,
the rump, Ar.