emerge / immerge are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
emerge: (verb) come out into view, as from concealment. (verb) become known or apparent. (verb) come up to the surface of or rise.
immerge: NA
emerge: ih·m·ER·jh
immerge: NA
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)