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"dampness" is also used as a crossword clue. If that's what you saw, the answer is often moisture (8 letters).
Definitions
Slight wetness, moisture, or humidity.
Word origin
From damp + -ness.
Used in a sentence
“They hadn't reckoned with the attendant personality disorders, which the coldness, the darkness, the dampness, the crampedness and the loneliness were doing nothing to decrease.”
“The dampness in the writing paper caused the ink to spread and smudge.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Moist air feel”8 letters
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