Which preposition to use with spurious

by Occurrences 1%

They trust to some imaginary change, long since passed by, and which has proved to be spurious by its failing of its fruits.

in Occurrences 1%

Whatever is spurious in Christianity is a remnant of Judaism, all its mysteries are misunderstood and falsely (i.e. literally) applied allegories.

on Occurrences 1%

The word scavinus or scabinus sometimes occurs, but in every case the document containing it has been proved spurious on other grounds.

to Occurrences 1%

These terms were first used, if I mistake not, by Dr. Oliver, and are intended to referthe word pure to the doctrines taught by the descendants of Noah in the Jewish line and the word spurious to his descendants in the heathen or Gentile line.

Which preposition to use with  spurious