View source for arcus

{{Lewis
|lshtext=<b>arcus</b>: ūs, m. (the orthography, [[arquus]] (cf. [[arquatus]]), is freq. in MSS., [[like]] [[quum]] for cum, quur for [[cur]], etc.; cf. Freund ad Cic. Mil. p. 31 sq. Thus [[Charis]]. p. 92 P. [[upon]] Cic. N. D. 3, 20, 51, reads arcuis; Prisc. p. 712 P. arci; and Non. p. 425, 5, [[upon]] Lucr. 6, 526, arqui; [[but]] the [[distinction]] [[which]] the [[latter]] gram. points [[out]] ([[arcus]] [[suspensus]] [[fornix]] appellatur; [[arquus]] non [[nisi]] qui in [[caelo]] apparet, [[quam]] Irim poëtae dixerunt) does not [[seem]] to be [[well]] founded.—<br /><b>I</b> Abl. plur. [[never]] [[found]]; acc. to the gram., [[Don]]. p. 1751, Diom. p. 285, Prisc. p. 779, Rhem. Palaem. p. 1371 P. al., it [[was]] arcubus; so Vulg. 2 Esdr. 4, 13; cf. Rudd. I. p. 104, n. 48.—Gen. [[sing]]. arqui, Lucr. 6, 526 Lachm., and Cic. N. D. 3, 20, 51 B. and K.—Dat. arcu, Sil. 4, 18.—Nom. plur. ARCVVS, Corp. Inscr. V. 85; Inscr. Henz. 5313: arci, Varr. ap. Non. p. 77, 12.—Acc. ARCOS, Corp. Inscr. II. 3420.—Fem., Enn. ap. Prisc. p. 712 P.; cf. id. 658 P.; and Serv. ad Verg. 6, 610, says [[that]] Catull. and others used it as fem.; v. Neue, Formenl. I. p. 679) [cf. Sanscr. arālas = [[bent]], the [[bent]] [[arm]], aratnis = Gr. [[ὠλένη]]; Lat. [[ulna]]; Germ. Elbogen; Engl. [[elbow]]. Curt.], [[prop]]., [[something]] [[bent]]; [[hence]],<br /><b>I</b> A [[bow]] (syn. [[cornu]]).<br />&nbsp;&nbsp;&nbsp;<b>A</b> For [[shooting]]: intendit [[crinitus]] [[Apollo]] Arcum auratum, Enn. ap. Cic. Ac. 2, 28, 89 (Trag. v. 54 Müll.): [[arcus]] [[intentus]] in aliquem, Cic. Sest. 7: haec cernens arcum intendebat [[Apollo]] Desuper, Verg. A. 8, 704; 9, 665; so Vulg. Psa. 10, 3; 36, 14: arcum tendere, ib. 3 Reg. 22, 34; ib. 4 Reg. 9, 24: [[adductus]], Verg. A. 5, 507: [[remissus]], Hor. C. 3, 27, 67: arcum dirigere in aliquem, Pers. 3, 60: [[quom]] arcum et pharetram mi et sagittas sumpsero, Plaut. Trin. 3, 2, 98; so, arcum suscitare, Vulg. Hab. 3, 9 et saep. —<br />&nbsp;&nbsp;&nbsp;<b>B</b> The rainbow ([[fully]]: [[pluvius]] [[arcus]],<br /> v. [[infra]], II.), Enn. ap. Prisc. p. 712 P. (Ann. v. 393 Vahl.): Tum [[color]] in nigris existit nubibus arqui, * Lucr. 6, 526 Lachm.: [[arcus]] [[ipse]] ex nubibus efficitur quodam [[modo]] coloratis, Cic. N. D. 3, 20, 51: ceu nubibus [[arcus]] Mille jacit varios [[adverso]] [[sole]] colores, Verg. A. 5, 88 Rib.; so Ov. M. 6, 63; 11, 632; 14, 838: [[pluvius]] describitur [[arcus]], Hor. A. P. 18; Liv. 30, 2; 41, 21; Plin. 18, 35, 80, § 353; Sen. Q. N. 1, 5 and 6: arcum [[meum]] ponam in nubibus, Vulg. Gen. 9, 13 sqq. (in Vulg. Apoc. 4, 3; 10, 1, iris, q. v.) al.—<br />&nbsp;&nbsp;&nbsp;<b>C</b> A [[bow]] or [[arch]] in [[building]], a [[vault]], [[arch]], [[triumphal]] [[arch]], etc.: [[efficiens]] humilem lapidum compagibus arcum, Ov. M. 3, 30; 3, 160; Juv. 3, 11; Suet. Ner. 25: [[marmoreus]] [[arcus]], id. Claud. 1; so id. ib. 11; id. Dom. 13; cf. Plin. [[Pan]]. 59, 2 Schwarz.—<br /><b>II</b> Transf.<br />&nbsp;&nbsp;&nbsp;<b>A</b> Poet. or in [[post]]-Aug. [[prose]], [[any]] [[thing]] [[arched]] or [[curved]] [[like]] a [[bow]]; of the breaking of waves: [[niger]] [[arcus]] aquarum, Ov. M. 11, 568.—Of the windings of a [[serpent]]: immensos saltu sinuatur in [[arcus]], Ov. M. 3, 42.—Of a [[curve]] in [[flight]]: dea se paribus per cælum sustulit [[alis]] Ingentemque fugā secuit sub nubibus arcum, Verg. A. 5, 658.—Of the [[curving]] or bendings of a [[bay]]: [[sinus]] curvos [[falcatus]] in [[arcus]], Ov. M. 11, 229 (cf.: inque [[sinus]] scindit [[sese]] [[unda]] reductos, Verg. A. 1, 161).— Of a harbor: Portus ab Euroo fluctu curvatus in arcum, Verg. A. 3, 533.—Of boughs of trees, Verg. G. 2, 26 et saep.—Of the [[back]] of a [[chair]], Tac. A. 15, 57.—<br />&nbsp;&nbsp;&nbsp;<b>B</b> The [[mathematical]] arc, Sen. Q. N. 1, 10; Col. 5, 2, 9.—Hence, of the [[five]] [[parallel]] circles of the [[globe]] [[which]] [[bound]] the zones (or [[perhaps]] [[rather]], the zones [[themselves]]): via [[quinque]] per [[arcus]], Ov. M. 2, 129.
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{{Gaffiot
|gf=<b>arcŭs</b>⁹ ou <b>arquŭs</b>, ūs, m.,<br /><b>1</b> arc : Cic. Nat. 1, 101<br /><b>2</b> arc-en-ciel : Cic. Nat. 3, 51<br /><b>3</b> voûte, arc de triomphe : Tac. Ann. 2, 41<br /><b>4</b> toute espèce d’objet courbé en forme d’arc : Virg. G. 2, 26 ; En. 3, 533 ; Tac. Ann. 15, 57 &#124;&#124; arc de cercle : Sen. Nat. 1, 10, 1 ; Col. Rust. 5, 2, 9.<br />&nbsp;&nbsp;&nbsp;&nbsp; gén. arch. arqui Lucr. 5, 526 ; Cic. Nat. 3, 51 ; nom. pl. [[arci]] Varr. d. Non. 77, 12 &#124;&#124; fém. Enn. Ann. 409.||arc de cercle : Sen. Nat. 1, 10, 1 ; Col. Rust. 5, 2, 9.<br />&nbsp;&nbsp;&nbsp;&nbsp; gén. arch. arqui Lucr. 5, 526 ; Cic. Nat. 3, 51 ; nom. pl. [[arci]] Varr. d. Non. 77, 12||fém. Enn. Ann. 409.
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{{Georges
|georg=arcus, altlat. [[arquus]], ūs, m. (vgl. angels. earh, got. arhwazna, [[Pfeil]]), I) der [[Bogen]], a) zum [[Abschießen]] der Pfeile, curvi [[arcus]], Ov.: [[arcus]] Haemonii, der [[Schütze]] [[als]] [[Gestirn]], Ov.: [[Teucri]] sagittae et [[arcus]], [[Ampel]].: [[Euboea]] [[consimilis]] arcui, Hyg.: [[portus]] [[curvatus]] in arcum, Verg.: [[hic]] [[pontus]] ad formam Scythici [[arcus]] [[incurvus]], [[Mela]]: speciem efficit [[arcus]] Scythici, Sall. fr.: arcum intendere, Cic., od. adducere, Verg. – b) der Regenbogen, Plaut., Cic. u.a.: [[arcus]] bibit aquam, zieht [[Wasser]] an [[sich]], Plaut. Curc. 129: vollst. [[arcus]] [[caelestis]], Plin., [[pluvius]], Hor., [[imbrifer]], Tibull., [[hibernus]], Val. Flacc. – c) [[als]] Bauwerk, der [[Bogen]], der [[Schwibbogen]], Vitr. 5, 10, 2 u.a. Ov. [[met]]. 3, 30 u. 160. Lucan. 4, 15 (v. einem Brückenbogen). Frontin. aqu. 15 extr. Corp. inscr. Lat. 6, 1252: ad arcum veterem (beim alten Tore) habitare, Petr. 44, 6. – [[bes]]. [[Triumphbogen]], [[Siegesbogen]], Ehrenbogen, circi maximi, Suet. Ner. 25, 2: [[Fabianus]], Sen. const. 1, 3: [[marmoreus]] cum tropaeis, Suet. Claud. 1, 3 u. 11, 3: [[arcus]] [[veteres]], Iuven. 3, 11: [[arcus]], tropaea, statuas deprecari, Plin. pan. 59, 2: [[fine]] anni [[arcus]] [[propter]] aedem Saturni ob recepta signa cum Varo amissa ductu Germanici dicatur, Tac. ann. 2, 41. – II) übtr.: 1) jede bogenförmige [[Krümmung]], Bogenwölbung, v. den Windungen der [[Schlange]], der [[Krümmung]] [[des]] Meerbusens, Ov.: v. der [[Krümmung]] [[des]] Hafens, Verg.: v. den brandenden Wellen, Ov.: v. der [[Lehne]] [[des]] Stuhls, Tac.: v. den Ranken [[des]] Weinstocks, Plin.: v. den zur [[Erde]] gebogenen Zweigen, die [[einwachsen]] [[sollen]], Verg. u. Col. – 2) insbes., [[als]] mathemat. t. t., der Kreisbogen, Sen. u. Col.: [[quinque]] [[arcus]], die [[fünf]] Parallelkreise der Erdkugel, die die Zonen [[begrenzen]], Ov. – / [[Alter]] Genet. sing. arqui, Lucr. 5, 526. Cic. de nat. deor. 3, 51 M. – [[alter]] Nom. plur. [[arci]], Varr. [[bei]] Non. 77, 12: u. Abl. plur. arquis, Tert. ad nat. 2, 15 ed. Oehler. – Abl. plur. arcubus, Manil. 3, 213. Capit. Maxim. et Balb. 16, 5. Treb. Poll. Claud. 3, 7. Veget. mil. 1, 14; 2, 15; 4, 29. Serv. Verg. Aen. 9, 622 u. 11, 6. [[Sidon]]. ep. 1, 5. Vulg. Nehem. 4, 13; vgl. Diom. 308, 2. Vel. Long. (VII) 68, 3 K. – [[arcus]] [[als]] fem., Enn. ann. 393.
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