Biffen Family History
Biffen Surname Meaning
Perhaps a variant of Bevin which has sometimes been confused with Welsh Bevan. The devoicing of /v/ to /f/ between vowels is unexpected however especially in SW England where intervocalic /v/ was normal dialectal usage.
Bevin is well attested in Somerset from medieval times, possibly for someone who lived by a fen (Middle English bi + fen) but the earliest forms are too late to be confident about this explanation.
See Fenn.
Source: The Oxford Dictionary of Family Names in Britain and Ireland, 2016
