con·strain

[kuhn-streyn]
verb (used with object)
1.
to force, compel, or oblige: He was constrained to admit the offense.
2.
to confine forcibly, as by bonds.
3.
to repress or restrain: Cold weather constrained the plant's growth.

Origin:
1275–1325; Middle English constrei(g)nen < Anglo-French, Middle French constrei(g)n- (stem of constreindre) < Latin constringere. See con-, strain1

con·strain·a·ble, adjective
con·strain·er, noun
con·strain·ing·ly, adverb
non·con·strain·ing, adjective
un·con·strain·a·ble, adjective
un·con·strain·ing, adjective

coerce, compel, constrain, force, oblige (see synonym study at oblige).


1. coerce. 2. check, bind.


2. free.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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World English Dictionary
constrain (kənˈstreɪn) [Click for IPA pronunciation guide]
 
vb
1.  to compel or force, esp by persuasion, circumstances, etc; oblige
2.  to restrain by or as if by force; confine
 
[C14: from Old French constreindre, from Latin constringere to bind together, from stringere to bind]
 
con'strainer
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

constrain
mid-14c., from stem of O.Fr. constreindre, from L. constringere "to bind together, tie tightly," from com- "together" + stringere "to draw tight" (see strain (v.)).
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
However, health-care costs and other nondiscretionary expenditures increasingly constrain what they can spend on higher education.
If you constrain prices below the market clearing rate you'll have shortages.
Let's instead look at ways to constrain future costs, rather than adding more to the bucket.
Availability and quality of weather data, however, often constrain research and extension efforts.
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