They are words that did not exist before because what they denote did not exist. But just a few months later, these terms sound almost fashionable words from a distant, happier past, because we now have completely different concerns.

By the way, the article for which I illustrated these words was not published in the end. But if you are interested in the subject and you read German, have a look at the online dictionary of corona words that the Leibniz Institute for the German Language in Mannheim compiled.

The entry for the keyword corona in the Digital Dictionary of the German Language is also very interesting. The DWDS presents »the German vocabulary from 1600 to the present day« and visualises it among other things, with »word progression curves«—awesome!