Every Monday we will post an entry that hasn’t yet been published with a view towards harnessing the collective onomastic power of the internet. If you have any thoughts about the name’s origin, other variants it might be related to, other examples of its use, etc., please share them in the comments! If you wish to browse other Mystery Monday names, there is an index.
Do we have any Breton scholars in the house? If so, today’s name is for you! It’s a 9th C masculine name from the Redon Cartularies. The prototheme may be related to Old Breton ken, cain/Middle Welsh cein ‘handsome, splendid warrior’, but that wouldn’t explain the -et-, and we also don’t know enough Old Breton to be able to identify -lor. If you’ve got any thoughts, please share in the comments!