Aegisthus Aegisthus /ˈiːdʒɪsθəs/

noun

1. (Greek mythology) the seducer of Clytemnestra and murderer of Agamemnon who usurped the throne of Mycenae until Agamemnon's son Orestes returned home and killed him  ( Aegisthus )
   (Greek mythology) the seducer of Clytemnestra and murderer of Agamemnon who usurped the throne of Mycenae until Agamemnon's son Orestes returned home and killed him
    Deception marked Aegisthus's rule as he took the throne by treachery.
   Deception marked Aegisthus's rule as he took the throne by treachery.