Means "glory of Hera" from the name of the goddess HERA
combined with Greek κλεος (kleos)
"glory". This was the name of a hero in Greek and Roman mythology
, the son of Zeus
and the mortal woman Alkmene. After being driven insane by Hera and killing his own children, Herakles completed twelve labours in order to atone for his crime and become immortal.