εὐνουχίζω
From LSJ
ἔγνω δὲ φώρ τε φῶρα καὶ λύκος λύκον → the thief knows the thief and the wolf knows the wolf, and thief knows thief and wolf his fellow wolf, set a thief to catch a thief
English (LSJ)
A castrate, τινα Ev.Matt.19.12 (Act. and Pass.), Luc.Sat. 12, etc.; γυναῖκας Xanth.19: metaph., γῆν Philostr.V A6.42; φάρμακον Archig. ap.Orib.8.2.8:—Pass., Gal.4.570, D.C.68.2.
German (Pape)
[Seite 1084] zum Verschnittenen machen, entmannen, Luc. Cronos. 12. – Pass., D. Csss. 68, 2; auch γυναῖκας, Ath. XII, 515 c.