The Latin phrase “falsa demonstratio non nocet (cum de corpore constat)” means “a false description does not harm (when it is clear from the context)” in English. This legal principle is based on the idea that if there is an error or mistake in the description of something in a document, but it is still evident from the overall context of the document what was intended, the mistake will not invalidate the document or harm its legal effect. In other words, minor errors in descriptions would not have significant legal consequences when the intention of the parties involved is still clear. This principle helps to ensure that small mistakes do not undermine the legal validity of important documents.