Polish niebieski

← Belarusian нябесны (cognate)

← Czech nebeský (cognate)

← Proto-Indo-European *nébʰos (mention)

← Polish niebo (suffix)

← Polish ski (suffix)

← Russian небесный (cognate)

← Proto-Slavic *nebo (inherited)

← Ukrainian небесний (cognate)

→ Polish niebieskawy (suffix)

→ Polish bladoniebieski (compound)

→ Polish niebiesko (suffix)