NEP PLU HAD © ª ¸ Epidemic illness. Low and vile treachery behind one's back. Mistakes that are detected too late. The beginning of decay or rotting. Working on secretive or hidden plans. Involved in these kinds of activities. Slowly, unnoticeably and irresistibly getting into an evil situation. Sneaking crisis of the most evil kind. Going down. Break down. Deterioration.