Perhaps our generous and knowledgeable resident scripture
scholar, Jerry Walsh might help us out a bit and check out
what greek word St. Paul or his surrogate used, that gets
translated as "old man" as in Romans 6:5:
"Knowing this, that our old man is crucified with him, that the body of sin might be destroyed, that henceforth we should not serve sin"
I just picked the first translation that came up;
I believe it was kjv.