From this site:
"Meaning & History
English form of the
Roman family name
Antonius, which is of unknown Etruscan origin.
...
It has been commonly (but incorrectly) associated with Greek ανθος (anthos) "flower", which resulted in the addition of the h to this spelling in the 17th century."
*~Loads of Randomness~*
My PNLs:
http://www.behindthename.com/pnl/150423