The Collaborative International Dictionary of English v.0.48:

E-la \E"-la`\, n.
   Originally, the highest note in the scale of Guido; hence,
   proverbially, any extravagant saying. "Why, this is above
   E-la!" --Beau. & Fl.
   [1913 Webster]

WordNet (r) 3.0 (2006):

ELA
    n 1: an extreme leftist terrorist group formed in Greece in 1971
         to oppose the military junta that ruled Greece from 1967 to
         1974; a revolutionary group opposed to capitalism and
         imperialism and the United States [syn: Revolutionary
         People's Struggle, ELA]