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Spanish árbol
← Catalan arbre (cognate)
← French arbre (cognate)
← Galician árbore (cognate)
← Proto-Indo-European *h₃erdʰ- (derived)
← Italian albero (cognate)
← Old Latin arbōs (inherited)
← Latin arbor (inherited)
← Latin (mention)
← Old Spanish arbol (inherited)
← Old Spanish arbor (mention)
← Portuguese árvore (cognate)
← Romanian arbore (cognate)
← Sicilian àrbulu (cognate)

→ Cebuano arbol (cognate)
→ Spanish enarbolar (affix)
→ Spanish arbolar (affix)
→ Spanish mástil (mention)
→ Spanish arbolote (suffix)
→ Spanish arbolito (suffix)
→ Spanish arbolazo (affix)
→ Spanish arbolillo (affix)
→ Basque arbola (borrowed)
→ Galician árbore (cognate)
→ Italian albero (cognate)
→ Portuguese árvore (cognate)
→ Sicilian àrbulu (borrowed)
→ Sicilian àrburu (borrowed)
→ Sicilian àrvulu (borrowed)