Isaiah gave the name of his son as "Shearjashub," which has been proposed to mean "a remnant shall return." Perhaps this was not a birth name, but maybe a bar mitzvah or a covenant name. The covenant of the Lord was that a remnant would return.
Book of Mormon Onomasticon, "Shearjashub," online at onoma.lib.byu.edu.
Roseann Benson and Shon D. Hopkin, "Finding Doctrine and Meaning in the Book of Isaiah," Religious Educator 15, no. 1 (2014): 107–109.