The meaning of navi is perhaps described in Deuteronomy 18:18,[6] where God said, "...and I will put My words in his mouth, and he shall speak unto them all that I shall command him." Thus, the navi was thought to be the "mouth" of God. The root nun-bet-alef ("navi") is based on the two-letter root nun-bet which denotes hollowness or openness; to receive transcendental wisdom, one must make oneself "open".
The Quran identifies a number of men as "Prophets of Islam" (Arabic: nabiyy نبي; pl. anbiyaa' أنبياء). Muslims believe such individuals were assigned a special mission by God (Arabic: Allah) to guide humanity. Besides Muhammad, this includes prophets such as Ibrahim (Abraham), Musa (Moses) and Isa (Jesus).
The word "Nabi" means newsbearer, and a Nabi of Allah is one who bears the news provided by Allah, chapter 78 of the Quran "an-Naba" is often translated as "the great news". Since these Anbiyaa (plural of nabi) of Allah received inspiration from the same source, it is logical that they would confirm and re-implement the most important principles which remain constant throughout the ages, and that some of the previous guidance would be amended by Allah in order to suit the age and advancement of the people, this guidance was given by Allah to tribes in the past due to the fact that humankind was still entrenched in tribal dependence.
Now that humankind is in it's final era, and Muhammad :saws: is the seal of the prophets, he was made to teach people how to unite on the values of justice alone, (and Allah :swt: the most wise is the best to proclaim what is just) the tribal structures and racism mostly began to fall apart during his ministry up until today where we find that through mass media and ease of international and intercity travel and marriage -tribal bonding has become almost useless along with the mini-fiefdom (nation state based on control of mud) structures which exist only in name, but are in actuality subject by proxy to international string pulling.
You will probably admit after watching the following presentation, that a large number of the prophets of the secularist mass media are also given words into their mouths by a common source ie. the continally cursed, corrupt international usury practicing, murderous thieves, however, the difference is that the aim of the secularist leadership is to lead humankind astray via deception from the path of truth, justice, and decency - and to the path of God's wrath:
It's a very crude edit on the phone without flashy effects or transitions skim through it if you find it too long, I couldn't cut any more footage than that without losing important content.
https://www.youtube.com/watch?feature=youtu.be&v=Ju2zLEh9ZyQ
Regarding lineage, the prophet :saws: is reported to have jewish ancestry, but he was different from the type condemned in the Quran in that he wasn't racist and didn't reject the signs of Allah :swt: out of false pride.
The Prophet pbuh was part Jewish!!!