winterize

verb2

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

   • 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. — 2021
2. •
   To remove the saturated fats from (a vegetable oil) by cooling and filtering it, so that it does not become cloudy in the winter.