ἡσῠχ-ία · hēsych-ia — LSJ
rest, quiet, Od. 18.22, etc.; personified in Pi. P. 8.1, Ar. Av. 1321 (lyr.); ἁ. φιλεῖ συμπόσιον Pi. N. 9.48: c. gen. obj., ἡ. τῆς πολιορκίης rest from . . , Hdt. 6.135; τῆς ἡδονῆς Pl. R. 583e; τοῦ λυπεῖσθαι ibid; περί τι ib.c; ἡ ἀπὸ τῆς εἰρήνης ἡ. D. 5.25: in pl., αἱ ἡ. σήπουσι Pl. Tht. 153c.
silence, stillness, E. Alc. 77 (anap.); esp. of the Pythagoreans, Luc. Vit.Auct. 3.
with Preps., διʼ ἡσυχίης εἶναι keep quiet, Hdt. 1.206; ἐν τῇ ἡσυχία, opp. ἐν τῷ πολέμῳ, Th. 3.12; ἐν ἡ. ἔχειν τι to keep it quiet, not speak of it, Hdt. 5.92.γʹ; ἐν ἡ. ἔχειν σφέας αὐτούς ib. 93; ἐν ἡ. διατρίβειν Hdn. 2.5.2; ἐφʼ ἡσυχίας Ar. V. 1517; μένειν ἐπὶ ἡσυχία Hdn. 1.13.2; κατʼ ἡσυχίην πολλήν quite at oneʼs ease, Hdt. 1.9, cf. 7.208, D. 8.12; καθʼ ἡσυχίαν at leisure, Ar. Lys. 1224, Th. 3.48, etc.; opp. διὰ σπουδῆς, X. HG 6.2.28; μετὰ . . ἡσυχίας quietly, E. Hipp. 205 (anap.).
with Verbs,
ἡσυχίαν ἄγειν keep quiet, be at peace or at rest, Hdt. 1.66, Pl. Ap. 38a, Isoc. 6.2, D. 4.1, etc.; περὶ μὲν τῶν ἄλλων ἡ. ἦγον, ὑπὲρ δέ . . Isoc. 10.49; κινήσεων from movements, Pl. Ti. 89e; keep silent, Hdt. 5.92, E. Andr. 143 (lyr.), Ar. Ra. 321: pl., τὰς ἡ. ἄγειν or ἔχειν, Ath. 3.114a, 11.493f.
ἡσυχίαν ἔχειν, = ἡ. ἄγειν, but generally implying less continuance, Hdt. 2.45, 7.150, X. Cyr. 1.4.18, HG 3.2.27; ἡ. ἔχειν πρός τινα Lys. 28.7; keep silent, τὰ δεινὰ ἡ. ἑκτέον about them, D. 58.60.
solitude, a sequestered place, h.Merc. 356, X. Mem. 2.1.21.