Proto-Italic *petnā

→ Middle English penne (derived)

→ Spanish peña (inherited)

→ Faroese pennur (derived)

→ French penne (inherited)

→ Indonesian pena (derived)

→ Italian penna (inherited)

→ Latin penna (derived)

→ Latin pinna (derived)

→ Portuguese pena (inherited)

→ Romanian pană (inherited)