Definition (行為)
If you do something out of force of habit, it means you do it automatically without thinking because you have done it repeatedly in the past.
出於習慣
I locked the door out of force of habit, not considering that Julia wouldn't be able to enter.
我習慣性地鎖了門，沒考慮到茱莉亞會無法進入。
I called him 'Jimmy' by force of habit.
我習慣性地叫他「吉米」。
Many of our daily actions are performed through sheer force of habit.
我們日常的許多行為都是純粹出於習慣。