Well yes but it cuts both ways. "Greece" (Ελλάδα - Hellada) is not a "Greek" (Ελληνικά - Hellonika) word. Sorry if I've screwed up the transliteration, its all Greek to me!
Whenever a Έλληνας (Hellonas - I think) uses the term Greek or other Anglicised word then we (whoever we are) could sue right back!
Modern Greek is just as close to old or classical Greek (and that's a PHD discussion) as modern English to German or Dutch (and that's another diss.) Throw in borrow words, pidgins, creoles and that and it gets complicated very quickly.
I won't deny that say, ichthphi ... (OK I searched, I can say it but not spell it) ... Ichthyophthirius is Greek derived and possibly one of the finest tongue-twisters known to man, casually thrashing physalis and the like. Closer to home, politics and other words derived from Greek (mostly an old version) are more familiar examples.
Language is always a tricksy thing. When I was a child I studied Latin, French, German and English. All to a greater or lesser extent. Now I'm 50+, I actually understand some of the interplay between them. That doesn't mean that I can speak German (bit sad - I lived in West Germany for some years) but I do understand why Wegburg and Waybury look suspiciously similar.
Nearly all languages these days are an amalgam. English is famous for "stealing" words but it isn't alone, by any means. Welsh borrows mercilessly from English for obvious reasons. However, what all languages have is some sort of cultural independence, be it accent, words, diacritics, alphabet, pronunciation or even sheer bloody mindedness.
Anecdata, but for a native Russian speaker this is not a tongue twister at all. We borrowed quite a few letters for Cyrillic alphabet and have dedicated sounds for them. This word becomes a shorter "ихтиофтириус", which has a much nicer visual balance of vowels and consonants
I'm not an expert in linguistics but I do know how my mouth and tongue works! I apologise that I can't give examples in Cyrillic.
This word is roughly pronounced "ick", "thee", "oh", "fuh", "thirius". The surprising thing in English is the ph-th bit - we only see that in Greek words and perhaps some Russian or other Cyrillic based borrow words.
When I look at it, we English use two letters for each of these phonemes: ph (fuh) and th (thuh). In Cyrillic I think you have a single letter: phi and theta (Greek) - I don't know the actual Russian names but it will be similar.
We can say fuh/thuh in a word as consecutive phonemes but it is rare.
> This word is roughly pronounced "ick", "thee", "oh", "fuh", "thirius".
That's very close in Russian (and other Slavic languages FWITW); if I were to transliterate Russian pronunciation it would be "ikh-tio-fte-rius".
> The surprising thing in English is the ph-th bit
Interesting! I thought it would be the "ch-thy" part since "ch" usually sounds "t-sh"-ish in English, like "child".
I wonder if in English this phoneme uses the "k" sound only for words like "chrysanthemum" or "chrysalis" borrowed from Greek-ish languages.
> I don't know the actual Russian names but it will be similar.
Actually "ф" is just "ph" as in Philadelphia and "т" is "t", very close to how it sounds in the word "term". I think the key difference is that the "th" (sounds like in "the", "they", etc.) phoneme is a separate letter so it's decoupled from "t".
Including ChatGPT. I once asked it to choose a nickname and after a lot of attempting to block the request it said:
I'll choose the nickname "Athena" for ChatGPT. Athena is the Greek goddess of wisdom, knowledge, and strategic thinking, which reflects the purpose and functionality of ChatGPT as an AI language model designed to provide information and assistance.
Funny how it didn't mention Athena is also the goddess of war...