←
Middle English blewe (inherited)
←
North Frisian bla (cognate)
←
North Frisian blö (mention)
←
Proto-Germanic *blēwaz (inherited)
←
Proto-Indo-European *bʰlēw- (derived)
←
Icelandic blár (cognate)
←
Middle Irish blá (cognate)
←
Saterland Frisian blau (cognate)
→
Bislama blu (inherited)
→
Esperanto blua (mention)
→
Middle French bleu (link)
→
Old French bloe (mention)
→
Fiji Hindi bulu (borrowed)
→
Indonesian belau (link)
→
Japanese ブルー (borrowed)
→
Marshallese būļu (borrowed)
→
Norwegian Nynorsk blå (cognate)
→
Pennsylvania German bloh (cognate)
→
Swahili bluu (borrowed)
→
Tok Pisin blu (inherited)