from Zulu word "mzamo" which means attempts/endevours. 'No' is a prefix for female names. it is taken to mean 'mother of...'. So Nomzamo means mother of all endevours!! there's nothing she won't try. there is no giving up. Nothing is impossible!!!
The sensation of something being so delicious or yummy that you will eat it quickly; hence the nom. Derived and combined from the words/terms yummy and nomnomnom.