verb (used with object), sum·mer·ized, sum·mer·iz·ing.

to prepare (a house, car, etc.) so as to counteract the hot weather of summer: to summerize a house by adding air conditioning.
to protect in hot weather for future use: to summerize a snowmobile.

Also especially British, sum·mer·ise.

Origin of summerize Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Word Origin and History for summerised



1797, "to spend the summer," from summer (n.1) + -ize. From 1935 as "to prepare for summer." Related: Summerized; summerizing.

Online Etymology Dictionary, © 2010 Douglas Harper