All the Messenger’s صلى الله عليه وسلم names are descriptions and not just purely names for acquaintances, but rather names derived from his characteristics that necessitate praise and completion.
Muhamad
This is the most famous of his names صلى الله عليه وسلم and this name is mentioned within the Torah and it means: the one who is praised for his many good characteristics.
Ahmad
The one who praises Allah the most from the creation. Those in the heavens, earth and in the hereafter, will praise him for all his praiseworthy characteristics. It is also the name Eesa علیھ السلام referred to him as.
Al-Mutawakkil
He was named this due to his reliance upon Allah in the most dependant way in order to establish and uphold the religion. No one has ever relied upon Allah as the Messenger صلى الله عليه وسلم did.
The Eradicator ‘Al-Māhi’
The one who Allah used to eradicate disbelief. No one else has been used to put an end to disbelief as he صلى الله عليه وسلم has.