Muh.ammad is a passive participle of a form corresponding to the Hebrew pu’al, from the root H.ET-MEM-DALET. T means “commendable, worthy, esteemed, cherished, having value”. See the range of meanings of the Hebrew noun חמדה The root of ma’amad is ‘AYIN-MEM-DALET. The Islamic theologians point out insistently that nouns and adjectives with this meaning occur in most of the passages that some Christians say refer to Jesus in the O.T., so Muhammad is shown by Scripture to be the Paraclete
The Arabic word meaning faithful is امين amîn = אמין in Hebrew letters.
A sample of what appears in the Real Messiah order it here
dating back to conversations with his grandfather, Gaston Frank. "He said we represent one of the last descendants of the Frankist Jewish faith in the world," he muses. "I grew up thinking that our family was something like the Last of the Mohicans."