Variant of Firmin, from Latin 'firmus' meaning firm or steadfast.
Fermen is a variant of Firmin, from Latin firmus, meaning "firm" or "steadfast." That root gives the name a very clear moral and emotional center: solidity, reliability, and a sense of being anchored rather than easily shaken.
In modern use, Fermen feels rare and somewhat antique, but not fragile. It has the kind of old Latin dignity that can make short names feel unexpectedly substantial. The sound is straightforward and strong, and the meaning reinforces that impression, making it a name that suggests endurance more than fashion.