Longman Dictionary of Contemporary English homepage

Date: 1300-1400
Language: Old French
Origin: constraindre, from Latin constringere 'to constrict, constrain', from com- ( COM-) + stringere 'to pull tight'

constrain

verb
     
con‧strain [transitive]
1 to stop someone from doing what they want to do
constrain somebody from doing something
Financial factors should not constrain doctors from prescribing the best treatment for patients.
2 to limit something:
Poor soil has constrained the level of crop production.
Women's employment opportunities are often severely constrained by family commitments.

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