Where does “italinichescu” come from?

italinichescu (Aromanian) comes from Aromanian escu, from Latin sūm, from Proto-Italic ezom, from Proto-Indo-European h₁ésmi, from Proto-Indo-European h₁ēs- — to be.

Ancestry of “italinichescu”, step by step

StepLanguageWordMeaning
1AromanianescuI am
2Latinsūmto be, exist
3Proto-Italicezomto be
4Proto-Indo-Europeanh₁ésmifirst-person singular present indicative of...
5Proto-Indo-Europeanh₁ēs-to be
Every word from Proto-Indo-European h₁ēs- →Every word from Proto-Indo-European h₁ésmi →Every word from Proto-Italic ezom →