Where does “Zelenortski otoci” come from?

Zelenortski otoci (Serbo-Croatian) comes from Serbo-Croatian otok, from Serbo-Croatian o, from Proto-Slavic o(b), from Proto-Balto-Slavic ab, from Proto-Indo-European h₃ebʰi.

Ancestry of “Zelenortski otoci”, step by step

Zelenortski otoci traces back through 3 separate lines of ancestry.

via Serbo-Croatian otok

StepLanguageWordMeaning
1Serbo-Croatianotokisland; swelling
2Serbo-Croatianoon, against; about, concerning, of, on
3Proto-Slavico(b)around, about; concerning; against, on
4Proto-Balto-Slavicab—
5Proto-Indo-Europeanh₃ebʰi—

via Serbo-Croatian zèlen

StepLanguageWordMeaning
1Serbo-Croatianzèlengreen
2Proto-Slaviczelenъgreen
3Proto-Slaviczeltiperhaps to hurt, to sting, to inflict trauma
4Proto-Indo-Europeanǵʰelh₃-to flourish; green, yellow

via Serbo-Croatian ȑt

StepLanguageWordMeaning
1Serbo-Croatianȑta cape, promontory, headland
2Proto-Slavicrъtъbeak, tooth; cliff, hill
Every word from Proto-Indo-European h₃ebʰi →Every word from Proto-Balto-Slavic ab →Every word from Proto-Slavic o(b) →