Asturian infiernu, Portuguese inferno, Galician inferno, Catalan infern, French enfer, Italian inferno, Romanian infern, Sardinian iferru
Faliscan ifra "beneath"
Gaulish anderon "of the gods of the underworld"
Gothic undar "under," Old Norse undir 'id.,' Old High German untar "below," Old Saxon undar "under," Old English under
Sanskrit ádhara- "lower," Young Avestan aδara- 'id.'