How do you say and write 'No Regrets' in Pali?

I am interested in getting a tattoo written in Pali, which is the language that Buddha spoke and that many writings from Buddha's time were written in. Does anyone know how to say "No Regrets" in the old language and write it the same way? I DO NOT want some English translation in english letters. I would like to see some symbols and characters new to me. Thanks =]