local. Also -idge. [f. WINTER v. + -AGE.] The action of wintering cattle; food or pasture for cattle in winter.
 
1828.  Craven Gloss., Winteridge 
 the same as average.
 
1888.  Times, 8 Nov., 5/6. [In Galway] Winterage is land hired to place cattle on in the winter months.