ἀγρυπν-έω,
perfect ἠγρύπνηκα[[ 5th c.BC: Hippocrates Medicus “προγνωστικόν” 2] Refs 5th c.BC+]:—lie awake, pass sleepless nights, [[ 6th c.BC: Theognis Elegiacus 471, Hp.[same place], 5th-6th c.BC: Plato Philosophus “Leges” 695a, etc.] Refs 6th c.BC+]; opposed to καθεύδω, [[ 5th-6th c.BC: Xenophon Historicus “Institutio Cyri (Cyropaedia)” 8.3.42] Refs 5th c.BC+]; ἀγρυπνεῖν τὴν νύκτα to pass a sleepless night, [[ [prev. author] “HG” 7.2.19, 4th-3rd c.BC: Menander Comicus 113] Refs 4th c.BC+]; οἱ -οῦντες sufferers from insomnia, [[ 1st c.AD: Dioscorides (Dioscurides) Medicus 4.64. ] Refs 1st c.AD+]
__2 metaphorically, to be watchful, [[ LXX.Wis.6.15, NT.Mark.13.33, NT.Eph.6.18; ὑπὲρ τῶν ψυχῶν NT.Heb.13.17; ἐπὶ τὰ κακά LXX.Dan.9.14] LXX+NT]: with infinitive, μηθέν σε ἐνοχλήσειν[[ “PGrenf.” 2.14a3. ] Refs]
__3 with accusative, lie awake and think of, τινά[[ “PMag.Par.” 1.2966.] Refs]