δῐκαστ-ής · dikast-ēs — LSJ
a judge, Hdt. 1.96, 3.14, 31, A. Ch. 120, Eu. 81, etc.
of stars, δ. τῶν ὅλων D.S. 2.31.
at Athens and elsewh., juror, S. Aj. 1136, etc.; opp. νομοθέτης, Lys. 14.4, cf. Antipho 1.23, X. Smp. 5.10.
δ. αἵματος avenger, E. HF 1150.