from The Century Dictionary and Cyclopedia
- n. In ancient Athens, one of the body of qualified citizens annually chosen to sit as judges in the courts; a dicast.
Sorry, no etymologies found.
Ah! there is no form of flattery that is not addressed to the heliast!
 The drachma was worth six obols, or twice the pay of a heliast.
There were two urns, one for each of the two opinions, and each heliast placed a pebble in one of them.
In this the heliast is sworn never to vote for the establishment of tyranny or oligarchy in Athens, and never to listen to any proposition tending to destroy the democratic constitution.