Old French monstre

← Latin mōnstrum (borrowed)

→ English monster (derived)

→ Middle English monstre (borrowed)

→ French monstre (inherited)

→ Middle French monstre (inherited)

→ Norwegian Bokmål mønster (derived)

→ Dutch monster (derived)

→ Norwegian Nynorsk mønster (derived)

→ Norman monstre (inherited)

→ Swedish mönster (derived)