The coming of her sister’s family was so very near at hand, that first in anticipation, and then in reality, it became henceforth her prime object of interest; and during the ten days of their stay at Hartfield it was not to be expected—she did not herself expect—that any thing beyond occasional, fortuitous assistance could be afforded by her to the lovers.
There are no more uses of "fortuitous" in the book.
Show samples from other sources
profits were enhanced by a fortuitous drop in the cost of raw materials
The situation was resolved by the fortuitous appearance of the caddymaster,