Which preposition to use with wontedness

in Occurrences 1%

At home we keep constantly in mind the great importance of inculcating in them a love of books and a wontedness in their use.

of Occurrences 1%

Well, take them separately or as a group, they were an absorbing study to the man who had seen so little of their kind for so long past, yet knew that kind by the wontedness of his lifetime.

Which preposition to use with  wontedness