ἕξις

ἕξις — héxis

ἕξις, ἕξεως, ἡ (ἔχω, future ἕξω), a habit, whether of body or of mind (Xenophon, Plato, Aristotle, others); a power acquired by custom, practice, use ("firma quaedam facilitas, quae apud Graecos ἕξις nominatur," Quintilian 10, 1 at the beginning); so Heb 5:14 (ἐν τούτοις ἱκανήν ἕξιν περιποιησάμενος, Sir. prol. 7; ἕξιν ἔχειν γραμματικης, Polybius 10, 47, 7; ἐν τοῖς πολεμικοῖς, 21, 7, 3; ἐν ἀστρολογία μεγίστην, Diodorus 2, 31; λογικήν ἕξιν περιποιουμενος, Philo, aleg. legg. 1, 4).