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"strength" is also used as a crossword clue. If that's what you saw, the answer is often potency (7 letters).
Definitions
the property of being physically or mentally strong
Word origin
From Middle English strengthe, from Old English strengþu (“strength”), from Proto-West Germanic *strangiþu (“strongness; strength”), equivalent to strong + -th (abstract nominal suffix). Cognate with Dutch strengte (“strength”), German Low German Strengde, Strengte (“harshness; rigidity; strictness; severity”).
Used in a sentence
“It requires great strength to lift heavy objects.”
“Our castle’s strength will laugh a siege to scorn.”
“He had the strength of ten men.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Physical or mental power”8 letters
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