Noun
Existenz
(philosophy) Existence; state of existing.
The Concept of Dread, by Soren Kierkegaard, appeared in 1844, first year of the commercial telegraph...It mentions the telegraph as a reason for dread and nowness or existenz. Marshall McLuhan
In his Spór o istnienie świata (Ger.: "Der Streit um die Existenz der Welt", Eng.: "Dispute about existence of the world") he created his own realistic position, which also helped to spread phenomenology in Poland. Source: Internet