Lewis Short
(verb) : ob-stringo, strinxi, strictum, 3
* To bind to or about; to bind, tie, or fasten up (rare): follem obstringit ob gulam,Plaut. Aul. 2, 4, 23: quom ego Amphitruonem collo hinc obstricto traham,id. Am. 3, 2, 72: cervice obstrictā,Juv. 10, 88: tauros aratro,to yoke,Val. Fl. 7, 602.
* To bind, bind up, close up by binding.
* Lit. (rare): laqueo collum,Plaut. Aul. 1, 2, 12.
* Trop., to bind, tie, fetter, hamper; to oblige, lay under obligation (the class. signif. of the word; syn.: obligo, devincio): donis aliquem obstringere,Cic. Clu. 66, 190: civitatem jurejurando,Caes. B. G. 1, 31: legibus,Cic. Inv. 2, 45, 132: foedere,id. Pis. 13, 29: aliquem aere alieno,to bring into debt,id. Fam. 11, 10, 5: jurejurando,to bind by an oath,Tac. A. 1, 14: animam suam,Vulg. Num. 30, 9: quam plurimas civitates suo sibi beneficio habere obstrictas volebat,bound, under obligation,Caes. B. G. 1, 9: Atticum officiis,Cic. Fam. 3, 18, 2: qui se tot sceleribus obstrinxerit,has been guilty of so many crimes,Cic. Verr. 2, 1, 3, § 8: se parricidio,to commit, perpetrate,id. Phil. 11, 12, 29: se perjurio,Liv. 26, 48: aliquem conscientiā,to bind by privity, by participation,Tac. H. 4, 55: obstringi conscientiā tanti sceleris, ne, etc., to be hindered by the sense of so great a crime, from, etc., Liv. 4, 17, 5: aliquem societate scelerum,Tac. A. 4, 57: fidem suam alicui,to pledge one's word, to promise positively,Plin. 7, 1, 1, § 8; Plin. Ep. 4, 13, 11; cf. Just. 2, 15, 14.—Mid.: qui alienum ... sustulit, furti obstringitur, makes himself guilty, becomes guilty, Sabin. ap. Gell. 11, 18, 21: eidem sceleri obstrictus est,Lact. 3, 18, 6.—Hence, obstrictus, a, um, P. a.; according to III., bound, obliged.—Comp.: obstrictior Debitor,Paul. Nol. Nat. Felic. 9, 145.—Hence, obstrictē, adv.; comp.: obstrictius, more stringently, Aug. Civ. Dei, 2, 24.
* To shut in, confine: ventos,Hor. C. 1, 3, 4: viminibus,Col. 4, 29.
* To hold together by: purpurea vestis ingentibus obstricta gemmis,in which precious stones were the fastenings,Flor. 4, 11, 3.
Charlton T. Lewis, Charles Short, A Latin Dictionary