inferne
Could not find infantissimo in Logeion dictionaries.
infantissimo Verb: singular, Verb: singular, Verb: singular, Verb: singular of inferne
infernĕ, adv., v. infernus, a, um, fin.
īnfernē, Adv. (infernus), unten, Lucr. 6, 597 u. 764 (wo infernĕ gemessen).
īnfernĕ (14) (infernus), adv., en bas : Lucr. 6, 597.