Where does “Bluetooth” come from?
Bluetooth (Portuguese) comes from English Bluetooth, from English Blue, from Middle English blēwe, from Anglo-Norman blew, from Middle French bleu, from Old French blöe, from Latvian blāvus, from Old High German blāo — yellow, blond, grey.
Ancestry of “Bluetooth”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | English | Bluetooth | — |
| 2 | English | Blue | A letterman at Oxford or Cambridge; A member of... |
| 3 | Middle English | blēwe | — |
| 4 | Anglo-Norman | blew | blue |
| 5 | Middle French | bleu | blue |
| 6 | Old French | blöe | — |
| 7 | Latvian | blāvus | accusative plural masculine form of blāvs |
| 8 | Old High German | blāo | blue, dark, grey; blue; yellow |
| 9 | Proto-West Germanic | blāu | blue |
| 10 | Proto-Germanic | blēwaz | blue; a dark bluish or grey colour, black |
| 11 | Proto-Indo-European | bʰlēw- | yellow, blond, grey |