Obs. exc. dial. [Of unknown origin: cf. QUARL v.] intr. To curdle, coagulate.
1578. Lyte, Dodoens, II. lxxiv. 246. It [Mynte] keepeth the mylke from quarring, and crudding in the brest.
1591. Percivall, Sp. Dict., Engrumecer, to clot, to quar like cold blood.