To constrain is to impose limitations or restrictions on someone or something, or to force yourself or someone else to act in a certain way.
(verb)See constrain in Webster's New World College Dictionary
transitive verb
Origin: ME constreinen < OFr constreindre < L constringere, to bind together, draw together < com-, together + stringere, to draw tight: see strict
See constrain in American Heritage Dictionary 4
transitive verb con·strained, con·strain·ing, con·strains
Origin:
Origin: Middle English constreinen
Origin: , from Old French constraindre, constraign-
Origin: , from Latin cōnstringere, to restrain, compress
Origin: : com-, com-
Origin: + stringere, to bind, press together; see streig- in Indo-European roots
.Related Forms:
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