ob-strŭo (opstr-), xi, ctum, 3
* V. a., to build before or against; to build, block, or wall up; to stop up, barricade, render impassable (class.; cf. obsaepio, claudo, oppilo).
* Lit.: validum pro diruto obstruentes murum,Liv. 38, 29: frontem castrorum auxiliis,id. 5, 1.—Esp., to build before so as to obstruct the light: obstructae fenestrae,Varr. R. R. 1, 4: FENESTRAS OPSTRVITO, Lex. Puteol. ap. Grut. 207, 2: luminibus alicujus,Cic. Dom. 44: jus luminum obstruendorum redimere, to purchase permission of a neighbor to build so as to obstruct his light, Inscr. Guarin. Comment. in Vet. Monument. 1, p. 64: portas,Caes. B. C. 1, 27: valvas aedis. Nep. Paus. 5: aditus,Cic. Brut. 4, 16: flumina,Caes. B. C. 3, 48: aquarum venas,Plin. 31, 3, 28, § 49: saxa,placed in the way,Ov. M. 3, 570: cujus aures morbus obstruxit,has stopped up, made deaf,Sen. Ben. 3, 17, 2: os obstruere,to close the mouth, to make silent,Vulg. Psa. 62, 12; id. Rom. 3, 19.
* Trop., to stop up, hinder, impede, obstruct: Catonis luminibus obstruxit haec posteriorum quasi exaggerata altius oratio,was a hinderance to,Cic. Brut. 17, 66: viri deus obstruit aures,stops, renders deaf, inexorable,Verg. A. 4, 440: perfugia improborum,shuts off,Cic. Sull. 28, 79: cognitionem difficultatibus,to impede, obstruct,id. Ac. 2, 3, 7: mentes,Tac. H. 3, 21.
* Intr., to be in the way: si officiens signis mons obstruet altus,Cic. Arat. 44.

s. TLL