ELECTRICITY

"...The term came from the classical Latin electrum, amber, from the Greek ἤλεκτρον (elektron), amber. The origin of the Greek word is unknown, but there is speculation that it might have come from a Phoenician word elēkrŏn, meaning 'shining light'...". 
http://en.wikipedia.org/wiki/Etymology_of_electricity 

In Georgian ელობა [eloba] means 'bright light, radiance'. The Georgian root 'eli' is the shortest, hence the direction of the borrowing is clear.