dial. Also 6 loppe. [Cogn. w. ON. hlǫup (hlaup) coagulation, hløypa to curdle.] intr. To curdle. (Cf. LOPPER v. 1.)
1570. Levins, Manip., 169/16. To Loppe as milk, coagulare.
1893. Northumbld. Gloss., Lop, to curdle, applied to milk that curdles without the application of an acid.
