Accustomed (adjective) — معتاد / متآلف: Familiar with something through regular experience, so that it feels normal. Below are 8 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
habituatedfamiliaracclimatisedinuredadaptedwonted
One's habit (noun); accustomed (adjective). Not to be confused with won't.