/ nəˈsesɪteɪt; NAmE / verb
( formal ) to make sth necessary :
[ vn ]
Recent financial scandals have necessitated changes in parliamentary procedures.
[ v -ing ]
Increased traffic necessitated widening the road.
[ vn -ing ]
His new job necessitated him / his getting up at six.
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WORD ORIGIN
early 17th cent.: from medieval Latin necessitat- compelled, from the verb necessitare , based on Latin necesse be needful.