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"sustenance" is also used as a crossword clue. If that's what you saw, the answer is often nourishment (11 letters).
Definitions
the act of sustaining life by food or providing a means of subsistence
Word origin
From Middle English sustenaunce, from Old French sustenance, from sustenir with the suffix -ance, from Vulgar Latin *sustenire, from Latin sustinere. Compare also Late Latin sustinentia. Equivalent to sustain + -ance.
Used in a sentence
“More than a mere source of Promethean sustenance to thwart the cold and cook one's meat, wood was quite simply mankind's first industrial and manufacturing fuel.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Food support”10 letters
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