The case of the word Tshelnik - Tshelniku

Macedonian names and makeDonski pseudo-linguistics
by Miltiades Elia Bolaris

"...Tshelnik/Tzelnikos/Tζελνίκος/Tshelniku/Tσέλιγκας

Karagiozis is the main cartoon character in the Greek shadow-theater.
The name is Turkish, meaning the "black eyed one".
Greeks took their shadow theater from the Turks who got it from the Persians and the Persians in turn got if from farther east, since it probably originated from China."

Read this appreciable article : Μακεδονικά και ...άλλα