Bluetooth.
The nickname of Harald Gormsson, a king of Denmark and Norway.
Meaning & usage
The nickname of Harald Gormsson, a king of Denmark and Norway.
An short-range wireless technology standard for personal area networks.
Where this word comes from
Etymology tree Proto-Indo-European *bʰel- Proto-Indo-European *-eh₁- Proto-Indo-European *bʰleh₁-der. Proto-Indo-European *bʰleh₁wos Proto-Germanic *blēwaz Proto-West Germanic *blāubor. Late Latin blāvus Anglo-Norman bleubor. Middle English blew English blue Proto-Indo-European *h₃ed- Proto-Indo-European *-ónts Proto-Indo-European *h₃dónts Proto-Germanic *tanþs Proto-West Germanic *tanþ Old English tōþ Middle English toth English tooth ▲ Old Norse Blátǫnncalq. English Bluetooth From blue + tooth. Calque of Old Norse Blátǫnn (compare modern Danish Blåtand). The networking standard is named after the king, since the technology unites computers and mobile devices similarly to the way he united the Danish tribes.
To transmit or communicate by Bluetooth.
Where this word comes from
Etymology tree Proto-Indo-European *bʰel- Proto-Indo-European *-eh₁- Proto-Indo-European *bʰleh₁-der. Proto-Indo-European *bʰleh₁wos Proto-Germanic *blēwaz Proto-West Germanic *blāubor. Late Latin blāvus Anglo-Norman bleubor. Middle English blew English blue Proto-Indo-European *h₃ed- Proto-Indo-European *-ónts Proto-Indo-European *h₃dónts Proto-Germanic *tanþs Proto-West Germanic *tanþ Old English tōþ Middle English toth English tooth ▲ Old Norse Blátǫnncalq. English Bluetooth From blue + tooth. Calque of Old Norse Blátǫnn (compare modern Danish Blåtand). The networking standard is named after the king, since the technology unites computers and mobile devices similarly to the way he united the Danish tribes.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.