Google dictionary has this information about the origin of ex Ex by itself (no hyphen) doesn't seem right either Is short for exempli gratia, and is in common use to introduce an example within a sentence
I TATTOOED MY EX-GIRLFRIEND ON ME!! FT. Piper Rockelle - YouTube
Submit a sample of academic writing, e.g., a dissertation chapter
However, some authors use ex.
In informal english, especially us english, it is acceptable to say I saw your ex with this hot dude yesterday Or, she is still in touch with all of her exes. In writing, though, the use of former doesn't seem so rare
In legal language i have come across the term ex post facto Isn't ex redundant in this phrase Post facto also means after the fact, so it should be sufficient This is commonly used in
What is the proper way to use the ex prefix to more than one word
My ex baseball coach taught me
