Source : Webster's Revised Unabridged Dictionary (1913)

Quadrel \Quad"rel\, n. [It. quadrello, LL. quadrellus, fr. L.
   quadrus square. See {Quadrate}, and cf. {Quarrel} an arrow.]
   1. A square piece of turf or peat. [Prov. Eng.]

   2. A square brick, tile, or the like.