Consider me behind the times, but I only recently found out the difference between an emoticon and an emoji, thinking they were synonyms. I also mistakenly thought that they both had their origins in the word “emotion”. But I was wrong!
A quick Google search provided this surprising result:
In order to salvage at least some of pride, I can say that I had thought that maybe “ji” (字, which also means “character”) was of Japanese origin and “emo” came from “emotion”, but I didn’t realise the whole thing was Japanese!
It’s cool to learn something new.