en > eu
1 [said by] -en arabera; -(e)nez; dioenez
according to Archimedes: Arkimedesen arabera...; Arkimedesek dioenez...
2 [depending on] -en arabera
classified according to size: neurriaren arabera sailkatuta
you'll be with one group or the other according to your age: (zure) adinaren arabera, talde batean ala bestean egongo zara