Where does “Цариград” come from?

Цариград (Macedonian) comes from Macedonian град, from Proto-Slavic gradъ, from Proto-Indo-European greh₃d-.

Ancestry of “Цариград”, step by step

Цариград traces back through two separate lines of ancestry.

via Macedonian град

StepLanguageWordMeaning
1Macedonianградcity, town; hail
2Proto-Slavicgradъhail
3Proto-Indo-Europeangreh₃d-—

via Macedonian цар

StepLanguageWordMeaning
1Macedonianцарczar, tsar, tzar; king, ruler, monarch; emperor
Every word from Proto-Indo-European greh₃d- →Every word from Proto-Slavic gradъ →Every word from Macedonian град →