【Usual】 , 【customary】 ,  【habitual】 ,  【wonted】 ,  【accustomed】  can mean familiar through frequent or regular repetition.

【Usual】 stresses the absence of strangeness and is applicable to whatever is normally expected or happens in the ordinary course of events.

【Customary】 often implies characteristic or distinguishing quality, and is applied to whatever is according to the 【usual】 or prevailing practices, conventions, or usages of a particular person or, especially, of a particular community.

Sometimes invariable or fixed quality is implied.

【Habitual】 implies settled or established practice, and is commonly applied to what has settled by long repetition into a habit.

【Wonted】 , a somewhat bookish word, stresses habituation, but tends to be applied to what is favored, sought, or purposefully cultivated.

【Accustomed】  is often interchangeable with  【wonted】  and  【customary】 , but it is a more familiar word than the first and is weaker in its suggestions of custom and fixity than the second.