winterize

• winterise (non-Oxford British spelling)

From winter +‎ -ize.

winterize (third-person singular simple present winterizes, present participle winterizing, simple past and past participle winterized)

1. (transitive) To prepare (something) for winter weather.

   Antonym: summerize

   • 2021, Freezing Temps Are Coming; It’s Time To Winterize Your Home, CBS Dallas / Fort Worth, December 31 2021

     Temperatures are expected to plummet over the weekend, and aside from grabbing a coat, experts say there’s some things you should do to winterize your home.

2. (transitive) To remove the saturated fats from (a vegetable oil) by cooling and filtering it, so that it does not become cloudy in the winter.
   • 1990, David R. Erickson (editor), (World Conference Proceedings) Edible Fats and Oils Processing: Basic Principles and Modern Practices, page 103:

     Some oils which are frequently winterized to produce salad oil are: refined and lightly hydrogenated soybean oil, cottonseed oil and some varieties of rapeseed oil.

     The continuous miscella winterizing process takes from 45 min to 1 hr to produce +15 hr cold test oil.