Where does “Мирослав” come from?

Мирослав (Serbo-Croatian) comes from Serbo-Croatian ми̑р, from Proto-Slavic mirъ, from Proto-Balto-Slavic meiˀrás, from Proto-Indo-European meyH-ró-s, from Proto-Indo-European mey- — to strengthen; to bind; to change, exchange.

Ancestry of “Мирослав”, step by step

Мирослав traces back through two separate lines of ancestry.

via Serbo-Croatian ми̑р

StepLanguageWordMeaning
1Serbo-Croatianми̑рpeace
2Proto-Slavicmirъpeace; world
3Proto-Balto-Slavicmeiˀráspeace
4Proto-Indo-EuropeanmeyH-ró-s—
5Proto-Indo-Europeanmey-to strengthen; to bind; to change, exchange

via Serbo-Croatian сла̏вити

StepLanguageWordMeaning
1Serbo-Croatianсла̏витиto celebrate
2Proto-Slavicslavitito praise, to glorify, to celebrate
Every word from Proto-Indo-European mey- →Every word from Proto-Indo-European meyH-ró-s →Every word from Proto-Balto-Slavic meiˀrás →