Mu·ham·mad 
(m-hämĭd, -hămĭd) also Mo·ham·med (mō-, m-)570?-632.
(m-hämĭd, -hămĭd) also Mo·ham·med (mō-, m-)570?-632. Arab prophet and founder of Islam. Muslims regard him as God's messenger through whom the Koran was revealed. Muhammad established a theocratic state at Medina after 622 and began to convert Arabia to Islam.
[Arabic muḥammad, praised, commendable, passive participle of ḥammada, to praise highly, from ḥamida, to extol; see ḥmd in the Appendix of Semitic roots.]