Beaufort had saved but a very small sum of money from the wreck of his fortunes, but it was sufficient to provide him with sustenance for some months, and in the meantime he hoped to procure some respectable employment in a merchant’s house.
I had first, however, provided for my sustenance for that day by a loaf of coarse bread, which I purloined, and a cup with which I could drink more conveniently than from my hand of the pure water which flowed by my retreat.
There are no more uses of "sustenance" in the book.
Show samples from other sources
The soup kitchen was her only sustenance.
As they grew more affluent, gardeners planted more for beauty than for sustenance.