A.castrated person, eunuch, employed to take charge of the women and act as chamberlain (whence the name, ὁ τὴν εὐνὴν ἔχων), Hdt.3.130, al., Ar.Ach. 117, X.Cyr.7.5.60, etc.
2. of animals, Philostr.Her.1.3, Sch.Par.A.R.1.585.
II. as Adj., watching the bed, sleepless, “λαμπάδες εὐνούχοισιν ὄμμασιν” S.Fr.789.