Guadiana

The story

1. Latin · derived fromAnās
2. Arabic · derived fromوَادِي“river, valley”
3. Old Spanish · derived fromAguadiana
4. Spanish · borrowed fromGuadiana
5. English todayGuadiana

From Spanish Guadiana, from Old Spanish Aguadiana, derived from Arabic وَادِي (wādī, “river, valley”) + Latin Anās (ancient name of the river), related to anas (“duck”).