English
infernally
From infernal + -ly.
A compound of infernal + -ly
Proto-Indo-European *(H)n̥dʰér-o-s
…
Latin īnferus ‘netherworld, underworld, hell’
Latin īnfernus
Medieval Latin infernalis ‘of the underworld’
Middle French infernal
English infernal
Today it means
adv In an infernal manner.
Language periods are conventional ranges, not dates for this word.
Etymograph / infernally