Where does “лука//luka” come from?

лука//luka (Serbo-Croatian) comes from Ancient Greek Λουκᾶς, from Latin Lucius, from Latin lux, from Proto-Italic louks, from Proto-Indo-European lewḱ-, from Proto-Indo-European lewk- — bright; to shine; to see.

Ancestry of “лука//luka”, step by step

лука//luka traces back through two separate lines of ancestry.

via Ancient Greek Λουκᾶς

StepLanguageWordMeaning
1Ancient GreekΛουκᾶςman from Lucania
2LatinLuciusa fish, probably the pike
3Latinluxlight; daylight, day, moonlight; life
4Proto-Italicloukslight
5Proto-Indo-Europeanlewḱ-lynx
6Proto-Indo-Europeanlewk-bright; to shine; to see

via Proto-Slavic lǫka

StepLanguageWordMeaning
1Proto-Slaviclǫkalow-lying meadow, water-meadow
2Proto-Balto-Slaviclankāˀ—
3Proto-Indo-Europeanlengʷʰ-light, agile, nimble; light, not heavy, agile,...
Every word from Proto-Indo-European lewk- →Every word from Proto-Indo-European lewḱ- →Every word from Proto-Italic louks →