νεφρός
From LSJ
Ὁ αὐτὸς ἔφησε τὸν μὲν ὕπνον ὀλιγοχρόνιον θάνατον, τὸν δὲ θάνατον πολυχρόνιον ὕπνον → Plato said that sleep was a short-lived death but death was a long-lived sleep
English (LSJ)
ὁ, in pl.,
A kidneys, Diog.Apoll.6, Hp.Aph.4.78, Pl.Ti.91a, etc.: in dual, Ar.Ra.475: rarely in sg., Id.Lys.962, Euphro 1.25: euphem. for ὄρχεις, Philippid.5.4: metaph., LXXPs.15(16).7. (Cf. OHG. nioro 'kidney', Praenest. nefrones, Lanuv. nebrundines 'kidneys', 'testicles'.)
