arpent

arpent A pre-metric French unit of length, having various official measures.
A pre-metric French unit of area, having various official measures.
(l)
1837 Louis Viardot, L’Ingénieux Hidalgo Don Quichotte de la Manches:fr: L’Ingénieux Hidalgo Don Quichotte de la Manche|fr.Wikisource, translation of El ingenioso hidalgo Don Quijote de la Mancha by Miguel de Cervantes Saavedra, Chapter I:

Sa curiosité et son extravagance arrivèrent à ce point qu’il vendit plusieurs arpents de bonnes terres à labourer pour acheter des livres de chevalerie à lire.

: 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.