←
Middle Dutch blau (inherited)
←
Proto-Germanic *blēwaz (inherited)
←
Proto-West Germanic *blāu (inherited)
←
Old Dutch *blāo (inherited)
→
Afrikaans blou (inherited)
→
Cimbrian plabe (cognate)
→
Middle French bleu (cognate)
→
Alemannic German blaaw (cognate)
→
Indonesian belau (borrowed)