winterise

/W IH1 N T ER0 AY0 Z/
verb
  1. 1

    To prepare (something) for winter weather.

  2. 2

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

Source: https://en.wiktionary.org/wiki/winterise, https://en.wiktionary.org/wiki/winterize