A.sitting, sedentary, of persons or their occupations, “ἔργον” Hp.Art.53; “οἱ πολλοὶ τῶν τὰς τέχνας ἐχόντων ἑδραῖοί εἰσι” X.Lac.1.3; ἑ. ἀρχαί, opp. στρατεῖαι, Pl. R.407b; “ἑ. βίος” AP11.42 (Crin.).
II. steady, steadfast, “κάθησ᾽ ἑδραία” Id.Andr.266; “δεῖ τὴν γυναῖκα ὥσπερ κύβον ἑδραῖον εἶναι” Plu.2.288d, cf.952d; “κύβος -ότατον σῶμα” Ti.Locr.98c; “ἑ. βάσεις” Pl.Ti.59d; “ἑδραιότατον στοιχεῖον εἶναι τὴν γῆν” Heraclit.All.41; “ὂν τὸ πάντων -ότατον” Plot.6.2.8; ἑ. ὕπνος sound sleep, Hp.Epid.6.4.15; of a cup, Ath.11.496a: metaph. in Rhet., firmly based, “κατάληξις” Demetr.Eloc.19, cf. Longin.40.4. Adv. -αίως firmly, Ath.Mech.36.10, Hdn.3.14.5; steadily, Procl.Hyp.3.21.
2. permanently appointed, PStrassb.40.11 (vi A. D.).