As far as English is concerned, the root of curiosity is curiosity. It was not formed from curious. The real question here is where the latter got its second u from. The French original did not have it. (Edit: and the answer to that, of course, is rather boring: by analogy with all the other -ous words. Dangerous, numerous, devious, perilous, dubious, serious, oblivious, murderous, hilarious ...
Which preposition follows the word curiosity? Ex. To explore their curiosity (for/about/with) science?
etymology - Why "curiosity" and not "cury"? - English Language & Usage ...
I found some ideas from the definition of incurious: Lacking intellectual inquisitiveness or natural curiosity; uninterested. But these tend to be opposites of more common words. Are there any unique words to describe the quality of a pronounced absence of intellectual curiosity?
What is the meaning of "out of curiosity"? Could it mean out of ideas? Or maybe it means he is curious? How should I know what he means?
What is the difference between the words curiosity and curiousness? How and when do you use them? Cambridge Dictionary has: curiosity [noun] B2 [ U ] an eager wish to know or learn about something...
I remember hearing once a three-part expression but have not been able to remember or find the third part in years. Curiosity killed the cat. Satisfaction brought him back. What is the third?
Curiosity itself can get one into trouble but it is more likely that a " morbid curiosity " leads to trouble. So you can use "morbid curiosity" in your example. From wikipedia: A morbid curiosity exemplifies addictive curiosity. It has as its object death, violence, or any other event that may cause harm physically or emotionally, the addictive emotion being explainable by meta-emotions ...