One way to hold this word: something goes under the water and the water closes over it. Not a splash, not a dipped corner, not a wet surface. The liquid touches every side at once, and from inside there is nothing else to touch. English then takes that same picture and puts a person's attention where the object was: a language, a book, a game surrounds you the way water does, and what is outside it stops reaching you.
From the word’s history
Wiktionary gives Latin immersus, from immergo, from in plus mergo, the same root that shows up in English merge and submerge.
Wiktionary 記的是拉丁文 immersus，來自 immergō，由 in 加 mergō 組成。mergō 這條線也長出英文的 merge 和 submerge，三個字裡都藏著同一個「沒進去」的動作。
Wiktionary entry for immerse supplied in packet (kaikki:3f6f69a190036ae4:647381939:21440)
登入就可以看每一支怎麼連回核心畫面。