Word Study
winterkill
CIDE DICTIONARY
winterkill, v. t.
To kill by the cold, or exposure to the inclemency of winter; as, the wheat was winterkilled. [1913 Webster]
winterkill, v. i.
To die as the result of exposure to the cold of winter; as, the tree winterkills easily. [Webster 1913 Suppl.]
For further exploring for "winterkill" in Webster Dictionary Online