One of the mysteries of the English language finally explained.
A South American plant related to wood sorrel, long cultivated in Peru for its edible tubers.
"Oxalis tuberosa", family "Oxalidaceae"
- ‘The potato was also of great importance and, with its related tubers oca and ulluco, provided crops which were protected from the frost, hail, and storms.’
- ‘Cultivated oca has an important place in the diets and farming systems of rural communities in the Andean highlands.’
- ‘Several families were harvesting bright yellow oca (a sweet potato).’
Early 17th century: from American Spanish, from Quechua ócca.
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