My favourite example of this sort of redundancy is the fact that there are numerous rivers in England called the River Avon. Avon is believed to come from the P

My favourite example of this sort of redundancy is the fact that there are numerous rivers in England called the River Avon. Avon is believed to come from the Proto-Brythonic word "aβon" [0], meaning "river". [0] https://en.wiktionary.org/wiki/Reconstruction:Proto-Brythonic/a%CE%B2on https://en.wiktionary.org/wiki/Reconstruction:Proto-Brythoni...