Where does “somos” come from?

somos (Spanish) comes from Latin sumus, from Proto-Italic ezom, from Proto-Indo-European h₁ésmi, from Proto-Indo-European h₁ēs- — to be.

Ancestry of “somos”, step by step

StepLanguageWordMeaning
1Latinsumus—
2Proto-Italicezomto be
3Proto-Indo-Europeanh₁ésmifirst-person singular present indicative of...
4Proto-Indo-Europeanh₁ēs-to be
Every word from Proto-Indo-European h₁ēs- →Every word from Proto-Indo-European h₁ésmi →Every word from Proto-Italic ezom →
somos — Etymology, Origin & Word History | Etymology Explorer