IPA: /əˈkʌstəm/
KK: /əˈkʌstəm/
To make someone or something used to a particular situation or condition through repeated exposure or practice.
She tried to accustom her dog to the new environment before the move.
Past: accustomed
Past Participle: accustomed
Accustom is formed from "ad-" (meaning to) and "consuetudo" (meaning custom or habit). The word describes the process of making someone familiar with a custom or habit.
Think of 'getting used to' something — 'ad-' means to, and 'consuetudo' relates to a habit or custom.