This is the 1794th most frequent German word.
marko
"Marko" is not a standard German word; it is typically used as a male given name.
Here, 'Marko' is a proper noun serving as the subject of the sentence, referring to a person's name.
Marko ist ein talentierter Musiker.
Marko is a talented musician.
In this instance, 'markohaft' derives from 'marko' used adjectivally to mean 'remarkable' or 'characteristic'.
Das Buch hat einen markohaften Titel.
The book has a remarkable title.
Here, 'Marko' again is a proper noun, the object in the prepositional phrase, referring to the individual addressed.