πατρο-κτόνος · patro-ktonos — LSJ
murdering oneʼs father, parricidal, A. Th. 752 (lyr.), etc.; π. δίκη trial for parricide, S. Fr. 696; π. μίασμα the foul slayer of my father, A. Ch. 1028 : also in later Prose, Ph. 2.73, Porph. Abst. 3.19.
χεὶρ π. a fatherʼs murdering hand, E. IT 1083.