Where does “Wesolowski” come from?

Wesolowski (English) comes from Polish Wesołowski, from Polish wesoły, from Czech veselý, from Proto-Slavic veselъ, from Proto-Balto-Slavic weselas, from Proto-Indo-European h₁wésus, from Proto-Indo-European -us — Forms adjectives from Caland system roots.

Ancestry of “Wesolowski”, step by step

StepLanguageWordMeaning
1PolishWesołowski—
2Polishwesołymerry; happy, jolly
3Czechveselýglad; merry
4Proto-Slavicveselъmerry
5Proto-Balto-Slavicweselascheerful, merry, happy
6Proto-Indo-Europeanh₁wésusgood, excellent
7Proto-Indo-European-usForms adjectives from Caland system roots
Every word from Proto-Indo-European -us →Every word from Proto-Indo-European h₁wésus →Every word from Proto-Balto-Slavic weselas →