A tropical American plant related to the arum, bearing edible tubers used as a food source.
From a Caribbean or South American indigenous language source, possibly related to 'arum.' The word entered English in the 17th century through colonial encounters and trade documents.
Arnuts are part of the hidden food diversity of the Americas—while potatoes and corn got famous, hundreds of indigenous tubers like arnuts sustained civilizations but were nearly forgotten when colonial agriculture took over!
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