transitive verb Etymology: Middle English, from Anglo-French acostomer, from a- (from Latin ad-) + custume custom Date: 15th century to make familiar with something through use or experience, ~ation noun
ACCUSTOM
Meaning of ACCUSTOM in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012