Prefix
A prefix or combining form signifying pertaining to electricity, produced by electricity, producing or employing electricity, etc.; as, electro-negative; electro-dynamic; electro-magnet.
Source: Webster's dictionaryAccording to their profile, Electro- Motive Diesel, has delivered over 62,000 EMD powered locomotives to 75 countries around the world, 2,600 of which have been delivered in Africa. Source: Internet