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Origin and history of obstruct

obstruct(v.)

1610s, "to block or stop up with obstacles or impediments," a back-formation from obstruction or else from Latin obstructus, past participle of obstruere "build up, block, block up, build against, stop, bar, hinder," from ob "in front of, in the way of" (see ob-) + struere "to pile, build" (from PIE *streu-, extended form of root *stere- "to spread"). Figurative sense of "to hinder, impede, retard, delay" (justice, the law, etc.) is by 1640s. Related: Obstructed; obstructing.

also from 1610s

Entries linking to obstruct

obstruction(n.)

"action of blocking up a way or passage, act of impeding passage or movement; fact of being obstructed," 1530s, from Latin obstructionem (nominative obstructio) "an obstruction, barrier, a building up," noun of action from past-participle stem of obstruere "build up, block, block up, build against, stop, bar, hinder," from ob "in front of, in the way of" (see ob-) + struere "to pile, build" (from PIE *streu-, extended form of root *stere- "to spread"). Figurative use is by 1650s.

unobstructed(adj.)

"not filled or blocked with impediments; not hindered or stopped," 1650s, from un- (1) "not" + past participle of obstruct (v.). Related: Unobstructedness.

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free
Old English freo "exempt from; not in bondage, acting of one's own will," also "noble; joyful," from Proto-Germanic *friaz "beloved; not in bondage" (source also of Old Frisian fri, Old Saxon vri, Old High German vri, German frei, Dutch vrij, Gothic freis "free"), from PIE *priy-
block
"solid piece," early 14c., blok, blokke, "large solid piece of wood," usually with one or more plane faces, from Old French bloc "log, block" of wood (13c.), which is from a Germanic source such as Middle Dutch bloc "trunk of a tree," Old High German bloh (from PIE *bhlugo-, from
stonewall
"block persistently, obstruct," by 1889 in sports; by 1914 in a political sense ("obstruct by long speeches, delayed replies...
barricade
"hastily made fortification for defense or to obstruct the progress of an enemy," 1640s, from French barricade, from Spanish...
mar
) "to waste, spoil," from Proto-Germanic *marzjan (source also of Old Frisian meria, Old High German marren "to hinder, obstruct...
cross
Meaning "thwart, obstruct, hinder, oppose" is from 1550s....To cross (someone's) path "thwart, obstruct, oppose" is from 1818....
post
"a timber of considerable size set upright," from Old English post "pillar, doorpost," and from Old French post "post, upright beam," both from Latin postis "door, post, doorpost," in Medieval Latin "a beam, rod, pole," which is perhaps from Vulgar Latin *por- "forth," a variant
spot
c. 1200, "moral stain;" by mid-14c. as "speck, stain left by something on a surface;" probably at least in part from a variant of Old English splott "a spot, blot, patch (of land)," and partly from or related to Middle Dutch spotte "spot, speck." Other cognates are East Frisian s
stop
Middle English stoppen, "obstruct (a passage) with a physical barrier; close up by filling, stuffing, or plugging," from Old English -stoppian (in forstoppian "to stop up, stifle"), a general West Germanic word, cognate with Old Saxon stuppon, West Frisian stopje, Middle Low Germ

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