Where does “alterar” come from?

alterar (Catalan) comes from Latin alterō, from Latin alter, from Proto-Indo-European h₂élteros, from Proto-Indo-European h₂el- — to grow, nourish; beyond, other; to wander, roam.

alterar (Catalan): to alter; to upset; to become upset

Definitions

to alter; to upset; to become upset

Ancestry of “alterar”, step by step

Step	Language	Word	Meaning
1	Latin	alterō	to change, alter
2	Latin	alter	the other, the second; the one...the other
3	Proto-Indo-European	h₂élteros	other , second
4	Proto-Indo-European	h₂el-	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 →