LATIN DICTIONARYLexicon Latīnum
verbthird conjugation

obstruō

obstruō (present infinitive obstruere, perfect active obstrūxī, supine obstrūctum)
Classical[ˈɔp.stru.oː]Ecclesiastical[ˈɔb.stru.o]

Meaning

  1. to build before or against; build, block, or wall up; stop up, barricade, render impassable
  2. to obstruct, stop up, hinder, impede
    [...] Sed nūllīs ille movētur / flētibus, aut vōcēs ūllās tractābilis audit: / Fāta obstant, placidāsque virī deus obstruit aurīs.But [Aeneas] was moved by no tears, and yields to none of the pleas he is hearing: The Fates oppose [it], and a god obstructs the man’s placid ears.29 BCE – 19 BCE, Vergilius, Aeneis 4.438–440

Latīnē defined in Latin in our graded readers

Conjugation conjugation 3

active indicative
formpresentimperfectfutureperfectpluperfectfut. perfect
1st sg.obstruōobstruēbamobstruamobstrūxīobstrūxeramobstrūxerō
2nd sg.obstruisobstruēbāsobstruēsobstrūxistīobstrūxerāsobstrūxeris
3rd sg.obstruitobstruēbatobstruetobstrūxitobstrūxeratobstrūxerit
1st pl.obstruimusobstruēbāmusobstruēmusobstrūximusobstrūxerāmusobstrūxerimus
2nd pl.obstruitisobstruēbātisobstruētisobstrūxistisobstrūxerātisobstrūxeritis
3rd pl.obstruuntobstruēbantobstruentobstrūxērunt
obstrūxēre
obstrūxerantobstrūxerint
active subjunctive
active subjunctive
formpresentimperfectperfectpluperfect
1st sg.obstruamobstrueremobstrūxerimobstrūxissem
2nd sg.obstruāsobstruerēsobstrūxerīsobstrūxissēs
3rd sg.obstruatobstrueretobstrūxeritobstrūxisset
1st pl.obstruāmusobstruerēmusobstrūxerīmusobstrūxissēmus
2nd pl.obstruātisobstruerētisobstrūxerītisobstrūxissētis
3rd pl.obstruantobstruerentobstrūxerintobstrūxissent
passive indicative
passive indicative
formpresentimperfectfuture
1st sg.obstruorobstruēbarobstruar
2nd sg.obstrueris
obstruere
obstruēbāris
obstruēbāre
obstruēris
obstruēre
3rd sg.obstruiturobstruēbāturobstruētur
1st pl.obstruimurobstruēbāmurobstruēmur
2nd pl.obstruiminīobstruēbāminīobstruēminī
3rd pl.obstruunturobstruēbanturobstruentur
passive subjunctive
passive subjunctive
formpresentimperfect
1st sg.obstruarobstruerer
2nd sg.obstruāris
obstruāre
obstruerēris
obstruerēre
3rd sg.obstruāturobstruerētur
1st pl.obstruāmurobstruerēmur
2nd pl.obstruāminīobstruerēminī
3rd pl.obstruanturobstruerentur
imperative
imperative
formactivepassive
pres. 2nd sg.obstrueobstruere
pres. 2nd pl.obstruiteobstruiminī
fut. 2nd sg.obstruitōobstruitor
fut. 3rd sg.obstruitōobstruitor
fut. 2nd pl.obstruitōte—
fut. 3rd pl.obstruuntōobstruuntor
infinitives & participles
infinitives & participles
formactivepassive
present infinitiveobstruereobstruī
perfect infinitiveobstrūxisseobstrūctum esse
future infinitiveobstrūctūrum esseobstrūctum īrī
present participleobstruēns—
perfect participle—obstrūctus
obstrūcta, obstrūctā, obstrūctae, obstrūctam, obstrūctārum, obstrūctās, obstrūcte, obstrūctī, obstrūctīs, obstrūctō, obstrūctōrum, obstrūctōs
future participleobstrūctūrus
obstrūctūra, obstrūctūrā, obstrūctūrae, obstrūctūram, obstrūctūrārum, obstrūctūrās, obstrūctūre, obstrūctūrī, obstrūctūrīs, obstrūctūrō, obstrūctūrōrum, obstrūctūrōs, obstrūctūrum
obstruendus
obstruenda, obstruendā, obstruendae, obstruendam, obstruendārum, obstruendās, obstruende, obstruendīs, obstruendōrum, obstruendōs
gerundobstruendī, obstruendō, obstruendumsupineobstrūctum, obstrūctū

Phrases from Meissner's Latin Phrase-Book

iter obstruere
to obstruct a road; to close a route.
valvas (portam) obstruere
to barricade a door (a city-gate).
portas obstruere (B. G. 5. 50)
to barricade the gates.
luminibus alicuius obstruere, officere
to obstruct a person's view, shut out his light by building.

ob-strŭo (opstr-), xi, ctum, 3,
I. v. a., to build before or against; to build, block, or wall up; to stop up, barricade, render impassable (class.; cf. obsaepio, claudo, oppilo).
I. 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.—
II. 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.—
b. Intr., to be in the way: si officiens signis mons obstruet altus, Cic. Arat. 44.

Origins

From ob- + struō.

Descendants
  • Catalanobstruir
  • Englishobstruct
  • Frenchobstruer
  • Italianostruire
  • Portugueseobstruir
  • Spanishobstruir
  • Galicianobstruír
  • Sicilianastrùjiri

Quick answers

What does obstruō mean in Latin?
obstruō, a verb, means “to build before or against; build, block, or wall up; stop up, barricade, render impassable”.
What are the principal parts of obstruō?
obstruō, obstruere, obstrūxī, obstrūctum (third conjugation).
How do you pronounce obstruō?
In classical Latin, [ˈɔp.stru.oː]; in ecclesiastical (church) Latin, [ˈɔb.stru.o].