The earliest text favors the verb engraven rather than engrave, as in these two examples. As discussed under 1 Nephi 19:1, the earliest reading in 2 Nephi 5:32 (“and I engravened that which is pleasing unto God”) should be restored. In 2 Nephi 5:30, the original engraven was briefly replaced by engrave in a few LDS editions in the early 1900s but was restored in the 1920 edition.
Summary: Maintain the original verb form engraven in 2 Nephi 5:30 and its past-tense form engravened in 2 Nephi 5:32.