<span class="searchmatch">chthonium</span> inflection of chthonius: accusative masculine singular nominative/accusative/vocative neuter singular...
Ecclesiastical) IPA(key): [ˈkt̪ɔː.ni.us] chthonius (feminine chthonia, neuter <span class="searchmatch">chthonium</span>); first/second-declension adjective underworldly, chthonian, chthonic...