noun, masculine/aʁ.pɑ̃/plural: arpents
arpent
“1837 Louis Viardot, L’Ingénieux Hidalgo Don Quichotte de la Manche, translation of El ingenioso hidalgo Don Quijote de la Mancha by Miguel de Cervantes Saavedra, Chapter I” — His curiosity and his extravagance came to the point that he sold several arpents of good working land to buy books of chivalry to read. translates Spanish hanegas
Inherited from Late Latin arepennis (“surface of a field”), from Gaulish *are-penno- (“end, extremity of a field”).