The word phobia is Greek, therefore any word that is connected to it should be Greek. To coin a new phobia name, it is proper to follow this rule. The rule has been broken many times in the past especially within the medical profession which is steeped in Latin and often, when forming a name for a phobia, they have dipped into what they know and have used a Latin suppletion affixed to the Greek stem to form their names. The language pundits frown on this but it has happened time and time again over the years and these words have become accepted. There are a number of these words used daily. Television is one such word, tele from Greek, meaning distant, and vision from Latin, meaning a seeing.
On The Phobia List, I only use names that appear in a reference book. Someday I may put together the list of names that I can't validate.
If you are interested in sending a phobia name to me, please send the reference for it. If it's one that you've created, let me know. And if it's just for fun, thanks. I can always use some fun.