Infernal
a.Of or pertaining to the river Styx; hence, hellish; infernal. See Styx.
adj.Stygian, infernal similar term adj, Acheronian, Acherontic, Stygian, dark similar term
Vogais: yia
Consoantes: stgn
stigma, set gun, shotgun, stasmia, scotsman, setswana, sidesman, stasimon, steichen, stick in.