this is from medline medical dictionary”
Main Entry: aut-
Variant(s): or auto-
: self : same one <autism> a : of, by, affecting, from, or for the same individual <autograft> <autotransfusion> <autovaccination> b : arising or produced within the individual and acting or directed toward or against the individual or the individual’s own body, tissues, or molecules <autoimmunity> <autosuggestion> <autoerotism>