According to Paul Hoskisson, if a Semitic Vorlage is posited for the Book of Mormon, then the Semitic propensity to play with names should be evident in it, and it is. For instance, in the book of Alma the people of Ammon are given a land called Jershon. The etymology of this toponym can be traced to a Hebrew root meaning "to inherit." Alma 27:22 states that "this land Jershon [which by its name connotes "inheritance"] is the land which we will give unto our brethren for an inheritance." This is an excellent example of wordplay in the Book of Mormon and also makes a statement about the Nephite action of giving the land to the converted Lamanites. [Paul Y. Hoskisson, "An Introduction to the Relevance of and a Methodology for a Study of the Proper Names of the Book of Mormon," in By Study and Also by Faith, Vol. 2, F.A.R.M.S., pp. 129-130]
“We Will Give Up the Land of Jershon Which Is on the East by the Sea”
The "land of Jershon" (Alma 27:22) is said to be on the east "by the sea," but it is hard to tell just exactly how close it was to the seashore or beach that Jershon extended. [Alan C. Miner, Personal Notes] According to John Sorenson, the land of Jershon was the one Nephite center on the east that the Lamanites never even threatened, so it must have been well inland. The area around the archaeological site of San Miguel, Tabasco, would fit the geographical requirements for Jershon. [John L. Sorenson, An Ancient American Setting for the Book of Mormon, F.A.R.M.S., p. 248] [See the commentary on Alma 27:26]
Alma 27:22 Jershon (Illustration): John Sorenson's site for Jershon (San Miguel, Tabasco). Archaeological Map of Middle America: Land of the Feathered Serpent. Produced by the Cartographic Division , National Geographic Society, 1972.