She had too old a regard for him to be so wholly estranged as might in two meetings extinguish every past hope, and leave him nothing to do but to keep away from Uppercross: but there was such a change as became very alarming, when such a man as Captain Wentworth was to be regarded as the probable cause.
There are no more uses of "probable cause" in the book.
Show samples from other sources
A magistrate determined that there was probable cause to search the house.
I knew that he had no probable cause to enter my vehicle and that he was conducting an illegal search.