The answer for this question would be Two words
Ethymology is a study about word origin and their meaning. In this case, osteoarthritis is from word osteo- which means bone and arthritis that means inflammation in the joint. Those words are from the Greek language.
I'm not sure but it sounds like it could be a bagel?
Surgical scalpel is re useable because it can be easily sanitized
Injury to themselves and others, and the risk of becoming overheated quicker than someone who is not special needs.