This is the 8668th most frequent German word.
kovacs
The term "Kovacs" is not a German word; it is typically a surname of Hungarian origin.
Here, 'Kovacs' is used as a personal proper noun referring to a name.
Mein Freund Kovacs spielt gerne Schach.
My friend Kovacs likes to play chess.
In this context, 'Kovacs' is likely referring to the creator or originator of the method, used as part of a compound noun.
Die Kovacs-Methode hilft vielen Menschen.
The Kovacs method helps many people.
Here, 'Kovacs' refers to a specific person or subject of the article, used as a standalone proper noun.