ἀδῠνᾰτ-έω,
of persons, to be ἀδύνατος, lack strength, [[ 5th c.BC: Epicharmus Comicus 266, 4th c.BC: Aristoteles Philosophus “de Somno et Vigilia” 454a27] Refs 5th c.BC+]: with infinitive, to be unable to do, [[ 5th c.BC: Hippocrates Medicus “περὶ τέχνης” 7, 5th-6th c.BC: Plato Philosophus “Respublica” 366d, 5th-6th c.BC: Xenophon Historicus “Memorabilia” 1.2.23, 4th c.BC: Aristoteles Philosophus “Ethica Nicomachea” 1165b22, “Pol.” 1287b17, etc. ] Refs 5th c.BC+]
__II of things, to be impossible, [[ LXX.Job.10.13, 1st c.BC: Philodemus Gadarensis Epigrammaticus “Ir.” p.98 W., NT.Matt.17.20, NT.Luke.1.37, 3rd c.AD: Pseudo-Callisthenes Historicus 3.26.] LXX+1st c.BC+]