Word for "satiating" or "satisfying" hunger and thirst [closed]

I have a context in which I need to say that something meets or satisfies both hunger and thirst at the same time. The subject is abstract and I need only one verb a bit more formal, or let's say more sophisticated than "satisfy" if possible. To be more precise, here is an example:

Such words ... the hunger and thirst of their souls, you must not stop writing!

Solution 1:

I regret that the niches of my vocabulary have not rendered up a word that only applies to hunger and thirst.

I might use the verb assuage.

assuage = to make unpleasant feelings less strong

Cambridge dictionary

The word applies to feelings other than only hunger and thirst, as do the other two candidates:

quell = If you quell an unpleasant feeling such as fear or anger, you stop yourself or other people from having that feeling

Collins dictionary

alleviate = to make (something, such as pain or suffering) more bearable

Merriam Webster

Of the three I prefer assuage for its feeling of actually reducing the feeling rather than alleviate's feeling of merely making the feeling more bearable. Also, "assuage thirst" dominated the others until the early 1900s, after which the three alternatives seem to have been used, with "quell thirst" in a small minority according to:

Google ngram: