The word "habitu" refers to a habitual or customary action or behavior. While it may seem like a specific word, there are plenty of synonyms that can be used to convey the same meaning. Some of these synonyms include routine, regularity, practice, tradition, pattern, tendency, custom, and usage. Each of these words conveys the idea of something that is done on a regular or habitual basis. Depending on the context in which it is used, one synonym may be more appropriate than another. However, no matter which synonym is used, the idea of a habitual action or behavior is clear.