- A mouth or an opening.
- A bone.
I said, "I think it means mouth or opening."
He said, "It should mean bone."
I guess we both were right. But to pat myself a bit more on the back, I have to add that had I not been familiar with the "mouth or opening" meaning, I, too would have guessed "bone", as in osteo.
But here's a little flaw in my thinking. I love words and trying to find patterns and roots and stuff. So as I'm thinking of other os words I know, I thought, "Osmosis. That must be os (opening) + mosis (motion). Therefore, motion through an on opening." Makes sense, right?
But still wrong. That one is apparently from the Greek osmos to push or thrust. No mouth or opning involved. Sigh.
I always wanted to study Greek and Latin. "Had I ever had the opportunity, I should have been a true proficient."