On Avoiding words Originating in Greek Mythology

Is this “לא ישמע על פיך”?

It appears to me, without research, this is nothing but righteous piety (maybe less). Words like “Sisyphean and “Martial” and perhaps “heroic” come from “Avoda Zara Shebatlah”. שמור לי בצד ע”ז פלוני presumably refers to one still used.