Which preposition to use with roote

of Occurrences 3%

Yes, marry is it; though it be not Dyet bread 'tis bread, 'tis your dinner; and though this be not the roote of all mischiefe yet 'tis a Carret, and excellent good meate if you had powderd Beefe to it.

in Occurrences 2%

But yet it is so, the effect & sute declareth it, because that the daughter and sister of the County or Earle of A. was so enamoured or rauished with the loue of a very simple and base gentleman whom she had seene daunse in the courte, and it printed so wel, that is, toke such deepe impression and roote in her hart, and understanding, that against the will of Father and Mother, parentes and friends shee maried him.

Which preposition to use with  roote