Where does “alto” come from?

alto (Old Portuguese) comes from Latin altus, from Proto-Italic altos, from Proto-Indo-European h₂eltós, from Proto-Indo-European h₂él- — to grow, nourish.

Ancestry of “alto”, step by step

StepLanguageWordMeaning
1Latinaltushigh, tall; deep; profound
2Proto-Italicaltos
3Proto-Indo-Europeanh₂eltós
4Proto-Indo-Europeanh₂él-to grow, nourish

Words derived from “alto

Every word from Proto-Indo-European h₂él-Every word from Proto-Indo-European h₂eltósEvery word from Proto-Italic altos