ἀγρυπν-έω · agrypn-eō — LSJ
lie awake, pass sleepless nights, to pass a sleepless, sufferers from insomnia
lie awake, pass sleepless nights, Thgn. 471, Hp. l.c., Pl. Lg. 695a, etc.; opp. καθεύδω, X. Cyr. 8.3.42; ἀγρυπνεῖν τὴν νύκτα to pass a sleepless night, Id. HG 7.2.19, Men. 113; οἱ -οῦντες sufferers from insomnia, Dsc. 4.64.
2 to be watchful
metaph., to be watchful, LXX Wi. 6.15, Ev.Marc. 13.33, Ep.Eph. 6.18; ὑπὲρ τῶν ψυχῶν Ep.Hebr. 13.17; ἐπὶ τὰ κακά LXX Da. 9.14: c. inf., μηθέν σε ἐνοχλήσειν PGrenf. 2.14a3.
3 lie awake and think of
c. acc., lie awake and think of, τινά PMag.Par. 1.2966.