The need for words is solved by usage, not by prescribing rules that prohibit importation.

Yes, I definitely agree. My earlier "the only problem is, it's two words" was my strict attempt to stick to the OP's definition "its own word" (with "word" as singular) while also being biased towards closed compound words instead of open or hyphenated compound words. I'm aware a morpheme isn't the same thing as a word, and a word can contain multiple morphemes, it's just that... well, at least to my eyes and ears, as someone who quite enjoys stitching words together, a closed compound word describing something feels better than having an open or hyphenated compound word. I'm quite fond of neologisms, especially when they're a single, running sequence of letters (as pneumoultramicroscopicosilicovulcaniconiosis is a single sequence, albeit gigantic and breakable).

Therefore, by "problem" I didn't mean "grammatically problematic". Grammatically, it's okay and, in fact, expected. I guess the word "problem" was way too much for what I actually meant.

Compound words in English can be spaced, hyphenated, and sometimes even parenthesized.

Yes, similar thing happens in Portuguese (my native language as a Brazilian): some examples include "quarta-feira" (Wednesday) and "trem de pouso" (landing gear).

German has the word “doppelkupplungsgetriebe” which means “dual clutch gearbox” but whether the first pair is hyphenated or not, these three words in English together refer to a single object, a type of automobile transmission.

The first part of the word instantly reminded me of the word "doppelganger" and, AFAIA, it has no hyphen.

Meanwhile, English has a genuine lack of a word for joy from the misfortune of others

While I was reading this part of your reply, the word "sadism" immediately popped up in my head as the closest English word to describe schadenfreude, except, in practice, yeah, both words are very different in meaning. (Also, sadism is literally coined after a proper name, Sade's name)

"Saudade" (Portuguese for that feeling of missing someone, as in the feeling from "she misses her deceased grandma") is also a word "missing" (pun intended) an English equivalent.

emia meaning presence in blood

Not sure if this was intentional but I loved the reference (the mitochondria is the powerhouse of the cell). Lol

importation.

Trivia: if we get deeper into etymology and history of evolution of human languages, we could argue modern languages are almost entirely comprised of imported words. The word "importation", itself, is a meta example:

in (Latin for “in, at, on; into”) + portō (Latin for “to carry, bear; convey”) + ātiō (from -tiō, Latin suffix added to verbs to form action nouns denoting a process, action, or result of an action)

!nostupidquestions@lemmy.world