Topic: AIR
Sense: 1-2
| Date: | 1600-1700 |
| Origin: | JET2 |
| Date: | 1300-1400 |
| Language: | Old French |
| Origin: | jaiet, from Latin gagates, from Greek, from Gagas, town and river in Asia Minor where it was found |
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jet1

2 [countable] a narrow stream of liquid or gas that comes quickly out of a small hole, or the hole itself
3 [uncountable]HEG a hard black stone that is used for making jewellery