/ ˌɪnstɪˈgeɪʃn; NAmE / noun
[ U ] the act of causing sth to begin or happen :
An appeal fund was launched at the instigation of the President.
It was done at his instigation .
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WORD ORIGIN
late Middle English (in the sense incitement ): from Old French , or from Latin instigatio(n-) , from the verb instigare , from in- towards + stigare prick, incite.