Estonian aju

← Tundra Enets ебе (mention)

← Finnish aivo (cognate)

← Proto-Finnic *aivo (inherited)

← Hungarian agy (mention)

← Northern Sami vuoiŋŋamaččat (mention)

← Proto-Uralic *ajŋe (inherited)

→ Estonian ajukasvaja (compound)

→ Estonian peaaju (compound)

→ Estonian seljaaju (compound)

→ Finnish aivot (cognate)

→ Hungarian agy (cognate)