1900+ Four Letter Boy Names

Historic association with Leopold damns it.

A creative modern spelling of Noé, the standard French form of Noah.

Corsican form of Ursus

Nute made the popularity charts several times in the early 20th century, but hasn't seen any use since 1928. It's a form of Knute, an old Scandinavian name that means "knot."

Gwil is short for Gwilym — so essentially the Welsh version of Will — and is sometimes used as a name in its own right.