"Wert due" is an archaic phrase that means "were it not for" or "if it were not for." There are several synonyms and alternatives to this phrase that can be used in modern language. Some commonly used phrases include "but for," "without," "absent," "lacking," "minus," "devoid of," and "assuming that." These phrases can be used to convey the same meaning as "wert due" without using outdated language. It is important to update our language choices to suit modern times and to ensure effective communication.