Likely a feminine form related to Rodney or Rod- names, from roots tied to fame or counsel.
Rodna is likely a feminine form related to Rodney or other Rod- names, with roots that can point toward fame or counsel. Its exact history is less settled than some names, which gives it a rare and slightly open-ended quality.
It sounds compact and strong, with enough familiarity in the root to feel anchored even when the full lineage is not entirely fixed. The name feels direct and unornamented. It has a firmness that keeps it from sounding overly delicate, and that makes it distinctive among feminine forms.
Rodna can come across as modern in use simply because it is uncommon and structurally simple. It is a name that suggests clarity, resilience, and a slightly uncommon path.