δεινότης · deinotēs — LSJ
terribleness, Th. 3.59, 4.10; harshness, severity, νόμων Id. 3.46.
cleverness, shrewdness, D. 18.144, Arist. EN 1144a23; opp. ἀλήθεια, Antipho 5.5; esp. in an orator, Th. 3.37, D. 18.242,277; ἡ ἐν τοῖς λόγοις δ. Isoc. 1.4; δεινότητα λόγου ἐπιδείκνυσθαι Plu. Pomp. 77.
Rhet., intensity, forcefulness, D.H. Comp. 18, Th. 53, al., Longin. 34.4, Hermog. Id. 2.9, al.: pl., Demetr. Eloc. 243.