When the barbarians left their country, they wanted to set their practices down in writing ; but as they found it difficult to write Germanic words with Roman letters, they put these laws into Latin.
In the confusion of the conquest and its progression, most things changed in nature ; to express them required the use of the old Latin words which were most closely related to new practices. Thus, what could evoke the notion of the old cens of the Romans, they called census, tributum  and when things had no relationship whatever to them, they expressed the Germanic words as best they could with Roman letters : thus was formed the word fredum of which I shall have much to say in the following chapters.
The fact that the words census and tributum having thus been used in an arbitrary manner has cast some obscurity on the meaning these words had in the first and second dynasties ; and some modern authors  who had their own systems, having found this word in the writings of those times, have judged that what was called census was precisely the cens of the Romans ; and from this they have concluded that our kings of the two first dynasties had put themselves in the place of the Roman emperors, and had changed nothing about their administration.  And as certain duties levied in the second dynasty have been by happenstance and certain modifications  converted into others, they have concluded that those duties were the cens of the Romans ; and as they have seen since the modern statutes that the crown domain was absolutely inalienable, they have said that those duties, which represented the cens of the Romans, and were not a part of his domains, were pure usurpations. I leave aside the other consequences.
To transfer to centuries long past all the notions of the century in which we live is of all sources of error the most fertile. To those persons who want to make all the ancient centuries modern, I will say what the priests of Egypt said to Solon : “O Athenians, you are nothing but children !”