verb (used with object) to familiarize by custom or use; habituate: to accustom oneself to cold weather.
Origin: 1425–75; late Middle English <
Middle French acoustumer. See
ac-,
custom Related forms pre·ac·cus·tom, verb (used with object)
re·ac·cus·tom, verb (used with object)
un·ac·cus·tom, verb (used with object)