Where does “eubeo” come from?

eubeo (Spanish) comes from Latin Euboeus, from Ancient Greek Εὐβοεύς, from Ancient Greek Εὔβοια, from Ancient Greek βοῦς, from Latin corvus, from Proto-Italic korwos, from Proto-Indo-European ḱorh₂wós, from Proto-Indo-European ḱer- — army.

Ancestry of “eubeo”, step by step

StepLanguageWordMeaning
1LatinEuboeus
2Ancient GreekΕὐβοεύςan inhabitant of Euboea; a Euboean
3Ancient GreekΕὔβοιαEuboea
4Ancient Greekβοῦςcow, ox, cattle; shield: ὃτι ἐκ βοείων ἐστι...
5LatincorvusA raven; a bird associated with prophecy and...
6Proto-Italickorwos
7Proto-Indo-Europeanḱorh₂wós
8Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
9Proto-Indo-Europeankr̥-to turn, to bend
10Proto-Indo-Europeanker-army
Every word from Proto-Indo-European ker-Every word from Proto-Indo-European kr̥-Every word from Proto-Indo-European ḱer-