English
hydrolley
* Blend of hydrogen + trolley coined at the Fourth International Hydrail Conference, Valencia, Spain, in 2008
Proto-Indo-European *ǵenh₁- ‘to produce’
Proto-Indo-European *ǵénh₁os ‘race, lineage’
Proto-Hellenic *génos ‘race’
Ancient Greek γένος ‘race, stock, kin’
French hydrogène
English hydrogen
Today it means
noun Any streetcar or tram vehicle using on-board hydrogen as a source of energy to power the motors.
Language periods are conventional ranges, not dates for this word.
Etymograph / hydrolley