Words that come from Proto-Indo-European bʰleh₁-

291 words across 57 languages descend from Proto-Indo-European bʰleh₁- — including blue, blueprint, Bluetooth, blueberry, bluegrass, bluer, Bluebeard, bluebird.

See the etymology of bʰleh₁- itself →

English (81)

German (40)

Dutch (14)

Faroese (12)

Norwegian Nynorsk (12)

Norwegian Bokmål (12)

Icelandic (10)

French (10)

Swedish (9)

Danish (7)

Catalan (7)

Middle English (6)

Italian (5)

Luxembourgish (5)

Old French (4)

Japanese (3)

Old English (3)

Esperanto (2)

Ido (2)

Old High German (2)

Volapük (2)

Scots (2)

Spanish (2)

Old Norse (2)

Romansch (2)

Tok Pisin (2)

Vietnamese (2)

Middle High German (2)

Greek (1)

Old Dutch (1)

Middle Dutch (1)

Ligurian (1)

Yiddish (1)

Westrobothnian (1)

Fiji Hindi (1)

Afrikaans (1)

Vilamovian (1)

Somali (1)

Central Franconian (1)

Hunsrik (1)

West Frisian (1)

Middle French (1)

Romanian (1)

Proto-Germanic (1)

Swahili (1)

Portuguese (1)

Wolof (1)

Haitian Creole (1)

Papiamentu (1)

Old Saxon (1)

Pennsylvania German (1)

Sranan Tongo (1)

Anglo-Norman (1)

Proto-West Germanic (1)

Frankish (1)

Vulgar Latin (1)

Old Frisian (1)