tetragonus

tetragōnus, a, um (τετράγωνος), viereckig, Boëth. inst. arithm. 1, 1. p. 8, 25 Fr. u.a.: ager, Gromat. vet. 247, 8 u. 354, 6: aspectus, Auson. ecl. 2, 21. p. 156 Schenkl. – subst., tetragōnum, ī, n. (τετράγωνον), das Viereck, Censor. fr. 7, 2 H. Mart. Cap. 6. § 712. Gromat. vet. 219, 2 u.a. Auson. ecl. 2, 42. p. 156 Schenkl. Isid. orig. 15, 8, 2 (wo cod. Gud. 1 tetragonium). – als Sternbild, Censor. fr. 3, 8.

tetragonus [LL < τετράγωνος], that has four angles (and hence four sides), (esp.) that has four equal angles, rectangular. b (math., of number) quadrangular, that can be represented as a rectangular arrangement of equally spaced points, (also spec.) square. c (as sb.) figure that has four angles (and hence four sides), (esp.) rectangle (also fig.); d (w. longus, dist. fr. square). e (astr.). 930 (10c) hujus ‥ voluntatis scedula ‥ virgineo aterrimi lacrimas liquoris forcipe in planitiem ~i campuli albentem destillante perscripta est CS 1343; ~us, quadrangulus Osb. Glouc. Deriv. 594; civitas ‥ forma ‥ oblonga et parte altera longiore ~a, vallibus profundis in tribus partibus circumsepta M. Par. Min. I 160; s1393 [prior] claustrale ~um tam tecturis quam pavimentis ‥ reparavit Bower VI 55.  b superficialis numerus est ita, qui non solum in longitudine sed in latitudine continetur ut trigonus, ~us, seu quadragonus Bart. Angl. XIX 123.  c triangulo vel tetrangulo vel ~o contrarium nihil est Alcuin Didasc. 960D; oppositum ‥ ~i sinistri ~um dextrum Adel. Elk. 37; cur ‥ nostri non erunt laude digni orbis quadrifidi dimensores, quadriviales historie descriptores, immo proculdubio velut ~i, sine vituperio triumphalis erunt lauree comprehensores? Higd. I prol. p. 6.  d alia [figura quadrilatera] est ~us longus, estque figura rectangula sed equilatera non est Rob. Angl. (I) Euclid I def. 23.  e respectuum trigonus fortunatissimus; fortunam enim absque difficultate denotat, sextili reliquisque fortunatior velut oppositus, ~o deterior (Rob. Angl. (I) Jud.) MS BL Cotton App. vi f. 164 (117).

tĕtrăgōnus, a, um (τετράγωνος), carré, qui a quatre côtés : Grom. 247, 8 || carré [en parl. dʼun nombre] : Boet. Arithm. 1, 27.