The Book of Mormon Language

Church Educational System
In Mormon 9:32–33, Moroni indicates that the plates were written in reformed Egyptian that had been altered by the Nephites according to their manner of speech. Some scholars believe that reformed Egyptian was a type of shorthand. Moroni explains that if the plates had been larger they would have been written in Hebrew, and then the record would have been without imperfections (see v. 33). This suggests that reformed Egyptian must not have been as precise and accurate as Hebrew, and it must have required less space to write reformed Egyptian than to write Hebrew. Knowing this gives us a greater appreciation of how efficient the reformed Egyptian language must have been. The Hebrew language is very compact when compared to English and many other western languages. A typical English sentence of fifteen words will often translate into seven to ten Hebrew words. We have no indication of the size of the characters Mormon and Moroni used, but if they rejected Hebrew because the plates were not “sufficiently large” (v. 33), then reformed Egyptian must have been a language remarkable for its ability to convey a lot of information with few words.

Book of Mormon Student Manual (1996 Edition)

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