With Christianity came in the thought that domination meant responsibility, that responsibility demanded virtue. The words which denoted Rank came to denote, likewise, high moral excellencies. The nobilis, or man who was known, and therefore subject to public opinion, was bound to behave nobly. The gentle-man -- gentile-man -- who respected his own gens, or family, or pedigree, was bound to be gentle. The courtier who had picked up at court some touch of Roman civilisation from Roman ecclesiastics was bound to be courteous. He who held an "honour," or "edel" of land, was bound to be honourable; and he who held a "weorthig," or "worthy," thereof, was bound himself to be worthy.

Lectures on Ancien Regime. 1866.