Tell us why we should unexpectedly come to love your hobby.
The word is not “heli” though. It’s “helico”.
Like in the helicoprion (a shark with a spiral think on it’s mouth) or a helicograph (a tool to draw spirals).
Yes, that is where it comes from.
https://www.collinsdictionary.com/dictionary/english/helico
https://www.dictionary.com/browse/helico-
Doesn’t change the fact that the word helicopter splits into “helico” and “pter” with the later meaning wing or feather in greek.
https://www.merriam-webster.com/dictionary/pter-
It’s a helico-pter “spiraling wing”, not a heli-copter.