I wish I could say that I thought things through that much. About 50% of the names on the map were the first thing that came into my head that didn't sound too sucky to me.
That particular name I recall because I liked how it was close to "cadence", but that is as much thought as went into it. I can't recall whereabouts on the map I placed it though. Hehe.
I cannot completely rule out unconciously having noted it from your map but I believe not. I have/had a place in Aronbor on mine called "Havnor" which I thought was quite a cool name. I was gutted when I picked up an Earthsea book quite recently and found out it was a place name there. I read the first three Earthsea books many, many years ago so maybe that name stuck in my mind. I don't know. I like to think not but... <shrug>
EDIT: Just seen you've only just posted your map today so I guess I didn't unconsciously copy.
And I don't mind about the link of course, it's cool.