Where does “oitru” come from?

oitru (Fala) comes from Old Portuguese outro, from Latin alter, from Proto-Indo-European h₂élteros, from Proto-Indo-European h₂el- — to grow, nourish; beyond, other; to wander, roam.

Ancestry of “oitru”, step by step

StepLanguageWordMeaning
1Old Portugueseoutro—
2Latinalterthe other, the second; the one...the other
3Proto-Indo-Europeanh₂élterosother , second
4Proto-Indo-Europeanh₂el-to grow, nourish; beyond, other; to wander, roam
Every word from Proto-Indo-European h₂el- →Every word from Proto-Indo-European h₂élteros →Every word from Latin alter →