Which preposition to use with acclimatize

in Occurrences 1%

I must be very careful so as not to estrange or frighten her by the boldness of ideas I try to acclimatize in her mind.

to Occurrences 1%

Still under the waning influence of the thirty years quasi-alliance with Austria, Rumania was not yet acclimatized to her new relations with Russia.

with Occurrences 1%

The sheep appear to have been acclimatized with difficulty.

Which preposition to use with  acclimatize