Henry George Liddell, Robert Scott, A Greek-English Lexicon

A.“ἐκάθευδον” Lys.1.13,23, X.Oec.7.11: fut. “καθευδήσω” Ar.Ec.419, X.Cyr.6.2.30, etc.: aor. ἐκαθεύδησα (not in Att.), Luc.Asin.6; inf. καθευδῆσαι Hp Int.12:— lie down to sleep, sleep, Il.1.611, Od.3.402, etc.; opp. ἀγρυπνέω, ἐγρήγορα, Thgn.471, Pl.Phd.71c, etc.; “καλὸς νέκυς, οἷα καθεύδων” Bion 1.71; “κ. μάτην” A.Ch.881; νυκτὸς κ. to sleep by night, Pl.Phdr. 251e; κ. τὰς νύκτας to sleep all one's nights, Bato 4; μαλακῶς, σκληρῶς κ., Antiph.187.6, Timocl.16.2; of male and female, “ἵνα τώ γε καθεύδετον ἐν φιλότητι” Od.8.313; “κ. μετά τινος” Pl.Smp.219d: generally, pass the night, τὴν βουλὴν εἰς ἀκρόπολιν ἰέναι κἀκεῖ κ. And.1.45; κ. ἐπὶ ξύλου roost, of a fowl, Ar.Nu.1431; ἐκ τοῦ καθεύδοντος from a sleeping state, Pl.Phd.72b.

II. metaph., lie asleep, lie idle, “Χερί” A. Ag.1357, cf. X.HG5.1.20, An.1.3.11, D.19.303; κ. τὸν βίον to be asleep all one's life, sleep away one's life, Pl.R.404a; opp. ἐνεργεῖν, Arist.EN1157b8; opp. προσέχειν τοῖς πράγμασι, Plu.Pomp.15.

2. of things, lie still, be at rest, ἐλπίδες οὔπω κ. E.Ph.634; “καθεύδειν ἐᾶν ἐν τῇ γῇ κατακείμενα τείχη” Pl.Lg.778d: τοὺς νόμους ἐᾶν κ. Plu.Ages. 30.

3. of the sleep of death, “καθεύδοντες ἐν τάφῳ” LXXPs.87(88).6, cf. Da.12.2, 1 Ep.Thess.5.10.