I looked up Niniveh in several dictionaries and websites and this is what I found:
The Assyrian form of the name is „ninua“, meaning either
a) settlement
b) residence of the son
c) residence of
Nino Now
Nino was one of the mythical founders of the Assyrian-Babylonian empire, husband of Semiramis. According to some sources, Semiramis ordered to build the hanging gardens of Babylon. This is probably not true – if those gardens, one of the seven wonders of the world, existed at all. But the lady seems to have existed.
The name
Nino is said to be a derivation of the Sumeric name
NINA, which was a name of the goddess
Ishtar. She went by the sign of the fish (but there seems to be no connection to the Hebrew word „nun“ meaning „fish“ > our letter N). The meaning of her name is said to be „goddess, mistress“, but I can’t back up any of this.
Check these:
http://www.kristian-buesch.de/seven_wonders_of_the_world/semiramis.htm
http://pub25.ezboard.com/fgatewaystobabylonboardfrm5.showMessage?topicID=8.topic