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cinnamon fern WORD ORIGIN noun a common coarse fern, Osmunda cinnamomea, having rusty-woolly stalks, growing in wet, low woods or thickets. Liberaldictionary.com
Origin of cinnamon fern First recorded in 1810–20 Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019