Are there any words that started off different, merged in pronunciation and spelling at some point and then separated again?
- E.g. Two hypothetical words in Old English OX and OY are neither homophones nor homonyms
- In Middle English MX and MY are homophones and homonyms
- In Modern English EX and EY are neither homophones nor homonyms
The words don't have to be in the English family, I'm interested if this has happened in any language.