Where does “arbol” come from?

arbol (Old Spanish) comes from Latin arbor, from Latin arbos, from Proto-Indo-European h₃erdʰ-, from Proto-Indo-European -wós — Creates adjectives from verb stems.

Ancestry of “arbol”, step by step

Step	Language	Word	Meaning
1	Latin	arbor	a tree; something made from a tree, of wood; the...
2	Latin	arbos	Alternative form of arbor
3	Proto-Indo-European	h₃erdʰ-	to increase, grow; upright, high
4	Proto-Indo-European	-wós	Creates adjectives from verb stems

Words derived from “arbol”

arboladura
arbolar
arbolito
árbol
enarbolar
arbolote
arbola
àrbulu
arvolé

Every word from Proto-Indo-European -wós →

arbol — Etymology, Origin & Word History | Etymology Explorer