Where does “Златко” come from?

Златко (Macedonian) comes from Macedonian злато, from Proto-Slavic zolto, from Proto-Indo-European ǵʰl̥tóm, from Proto-Indo-European ǵʰelh₃- — to flourish; green, yellow.

Ancestry of “Златко”, step by step

StepLanguageWordMeaning
1Macedonianзлатоgold; darling
2Proto-Slaviczoltogold
3Proto-Indo-Europeanǵʰl̥tómgold
4Proto-Indo-Europeanǵʰelh₃-to flourish; green, yellow
Every word from Proto-Indo-European ǵʰelh₃- →Every word from Proto-Indo-European ǵʰl̥tóm →Every word from Proto-Slavic zolto →