ἤλεκτρον (ēlektron)

electron , a word sometimes used to denote amber , as probably in (Homer) and (Herdotus Historicus);—;sometimes pale gold , a compound of 1 part of silver to 4 of gold, (Sophocles Tragicus), etc.—;In (Aristophanes Comicus) ἐκπιπτουσῶν τῶν ἠλέκτρων, the ἤλεκτροι are probably the pegs of the lyre made of or inlaid with electron.
derivation uncertain (ML)