Where does “Guadiana” come from?

Guadiana (Spanish) comes from Old Spanish Aguadiana, from Latin Anas, from Latin ānus, from Kabuverdianu anos, from Portuguese nós, from Old Portuguese enos, from Old Portuguese os, from Vulgar Latin *lōs — that.

Ancestry of “Guadiana”, step by step

StepLanguageWordMeaning
1Old SpanishAguadiana—
2LatinAnasduck
3Latinānusa ring
4Kabuverdianuanoswe, first person plural
5Portuguesenóswe; us; "first-person plural objective personal...
6Old Portugueseenos—
7Old Portugueseosthe
8Vulgar Latin*lōs—
9Latinillōs—
10Latinillethat; those; "; demonstrative pronoun "; that...
11LatinolleArchaic form of ille
12Proto-Italic*olnosthat

Words derived from “Guadiana”

Every word from Proto-Italic *olnos →Every word from Latin olle →Every word from Latin ille →