inferus

Etymology
From, from , from. Cognate with 🇨🇬, 🇨🇬. *ð > f is irregular in word-internal position (**inderus would be expected; compare ) and is explained either as (Faliscan) dialectal influence or by assuming metanalysis as a compound with.

Adjective

 * 1) low
 * 2)  the souls of the dead
 * 3)  the netherworld, the underworld, Hell