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English definition of “root”

root

noun [C] (ORIGIN)   /rut, rʊt/
the origin or source of something: We must get to the root of this problem. rooted  /ˈrut̬·əd, ˈrʊt̬-/ adjective [not gradable] deeply rooted loyalty
(Definition of root noun (ORIGIN) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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