Topic: The Welsh verb for open is agor
I am learning (some) Welsh, using the course at Duolingo.com
Recently one part involved talking about opening and closing a door or doors.
I noticed that the verb for open is agor and it occurred to me that agor is in agorapobia.
The verb for close is cau and, having related agor to agoraphobia, it has occurred to me that cau is a little like the start of the word claustrophobia.
However, it appears that the etymology of agoraphobia is that the word was coined in Germany, from the Greek for a marketplace.
https://en.wikipedia.org/wiki/Agoraphobia#Etymology
So, I wonder if this is coincidence or if there is some connection from very many years ago.
William