Where does “Rio Tinto” come from?

Rio Tinto (Portuguese) comes from Portuguese Rio, from Old Portuguese rio, from Vulgar Latin rius, from Latin rīvus, from Proto-Italic rīwos, from Proto-Indo-European h₃riH-wó-s, from Proto-Indo-European h₃reyH-, from Proto-Indo-European h₃er- — to move, to stir; to rise, to spring; to quarrel,...

Ancestry of “Rio Tinto”, step by step

Rio Tinto traces back through two separate lines of ancestry.

via Portuguese Rio

StepLanguageWordMeaning
1PortugueseRioa large amount of anything
2Old Portugueserioriver
3Vulgar Latinriusriver
4Latinrīvusa small stream; brook, stream, rivulet
5Proto-Italicrīwos
6Proto-Indo-Europeanh₃riH-wó-s
7Proto-Indo-Europeanh₃reyH-to move, set in motion
8Proto-Indo-Europeanh₃er-to move, to stir; to rise, to spring; to quarrel,...

via Portuguese tinto

StepLanguageWordMeaning
1Portuguesetintodark red; tinted; dyed
2Old Portuguesetinto
3Latintinctusimpregnated with; dipped in; treated; coloured,...
4Latintingōto wet, moisten, dip in, impregnate with; to smear; to dip, immerse
5Latintingeresecond-person singular future passive indicative...
6Proto-Indo-Europeanteng-to think
Every word from Proto-Indo-European h₃er-Every word from Proto-Indo-European h₃reyH-Every word from Proto-Indo-European h₃riH-wó-s