In creating a new English word, when does one use the suffix of -matic vs -metic?
As an example: Why or how does one get arithmetic from a root word of arithmos?
On the origins of the word "arithmetic" vs "arithmatic":
- Why is the suffix -metic? And not -matic?
- Why not arithmos-tic?
Note, this is a legitimate question regarding the etymology of a English word, that (albeit it) may have Greek origins, still belongs more here than elsewhere.