The term 'Arab Name Part' refers to three common components of Arabic names. Abou (4 letters) is a title of respect that is used to refer to an older man, usually a father or grandfather. Ibn (3 letters) is a patronymic, meaning it is derived from the name of the person's father. ABU (3 letters) is also a title of respect, but it is used to refer to an older man who is not related to the speaker.