Roman swear words ,oaths, and insults

[Epictetus]

Although it is not profanity, Ovid's Ibis could be useful. It is a long and rather nasty curse of sorts.

May the earth refuse thee her fruits and the river his waters,
may wind and breeze deny their breath.
May the sun not be warm for thee, nor Phoebe bright,
may the clear stars fail thy vision.
May neither Vulcan nor the air lend thee their aid,
nor earth nor sea afford tehe any path.
Mayst thou wander an exile and destitute,
and haunt the doors of others, and beg a little food with trembling mouth.
May neither thy body nor thy sick mind be free from querulous pain,
may night be to thee more greivous than day, and day than night.

There are hundreds of lines, each more nasty than the last.