Tiernan, eh? It's okay, I guess. As in there is no obvious thing I don't like about it, but it strikes me as really whiny and annoying somehow.
Nicknames:
Tee
T
Tier
Tierie
Tienie
Tiernie
Tan
Three boys nappin', one mama namenerdin'
To peruse my top 100ish names:
http://www.behindthename.com/pnl/82589
He is becoming greater, I am becoming less
Bits of the journey here:
http://jodifriesen.blogspot.ca/And some family cuteness here:
https://www.flickr.com/photos/41705228@N08/