vulkanisch
From LSJ
ἐξ ὀνύχων λέοντα τεκμαίρεσθαι → judge by the claws, judge by a slight but characteristic mark, small traits give the clue to the character of a person, deduce something from a small indication, identify a lion from its claws
German > Latin
vulkanisch, von Bergen, flammas eructans; ignes od. flammas evomens.