v. t. [ imp. & p. p. Winterkilled p. pr. & vb. n. Winterkilling. ] To kill by the cold, or exposure to the inclemency of winter; as, the wheat was winterkilled. [ U. S. ] [ 1913 Webster ]

v. i. To die as the result of exposure to the cold of winter; as, the tree winterkills easily. [ Webster 1913 Suppl. ]