Latin plānum

→ English plane (derived)

→ English plain (derived)

→ English planum (derived(en/mul))

→ English planum (derived)

→ Basque lau (derived)

→ Old French plain (inherited)

→ Old French plaigne (mention)

→ Irish plána (derived)

→ Galician chan (inherited)

→ Galician plano (borrowed)

→ Alemannic German Plangge (derived)

→ Indonesian pelan (derived)

→ Italian planare (derived)

→ Macanese cham (derived)

→ Dutch plein (derived)

→ Norwegian Nynorsk plan (derived)

→ Portuguese chão (inherited)

→ Old Portuguese chão (inherited)