Where does “славејче” come from?

славејче (Macedonian) comes from Macedonian славеј, from Proto-Slavic solvьjь, from Proto-Slavic solvъ, from Proto-Indo-European saluo-.

Ancestry of “славејче”, step by step

StepLanguageWordMeaning
1Macedonianславејnightingale
2Proto-Slavicsolvьjьnightingale
3Proto-Slavicsolvъyellowish-gray
4Proto-Indo-Europeansaluo-—
Every word from Proto-Indo-European saluo- →Every word from Proto-Slavic solvъ →Every word from Proto-Slavic solvьjь →