My voice, although harsh, had nothing terrible in it; I thought, therefore, that if in the absence of his children I could gain the good will and mediation of the old De Lacey, I might by his means be tolerated by my younger protectors.
There are no more uses of "mediate" in the book.
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By this time the two former friends were hardly speaking to each other and had to call in local elders to mediate.
Malala Yousafzai -- I Am Malala
Im— mediately after we were finished eating, Mambu gave each boy his share of the money.