πετρόω
From LSJ
Κατηγορεῖν οὐκ ἔστι καὶ κρίνειν ὁμοῦ → Iudex et accusator esse idem nequit → Wer anklagt, darf nicht auch noch Richter sein zugleich
English (LSJ)
A turn into stone, petrify, mostly in Pass., Lyc.901, APl.4.132 (Theodorid.), Orph.L.527: aor. Med. πετρώσατο Nonn.D.25.81. 2 Pass., to be frozen, ib.47.591. II Pass., to be stoned, E.Or.564; πετρουμένους θανεῖν ib.946, cf. Ph.1177, Ion1112. 2 to be filled with stones, Nonn.D.43.131.