κῦρος,εος,τό,
A. supreme power, authority, κ. ἔχειν ἀμφί τινος
A. Supp. 391
; τῶν πρηγμάτων τὸ κ. ἔχειν
Hdt. 6.109
; ἅπαν τὸ κ. ἔχειν
Th. 5.38
, cf. Pl. Grg. 450e , al.; κ. ἔχειν περί τινος
Id. Cra. 435c
;τὸ κ. τῆς ἐνεργείας principleororiginof a function, Gal. 10.459 .
2. concrete,one invested with authority, Pl. Lg. 70c c.
II. confirmation, validity,ἔχειν κ.,
= κεκυρῶσθαι , S. OC 1779 (anap.), cf. POxy. 2110.12
(iv A.D.), etc.; ἡ νῦν . . ὑπάρξει κ. ἡμέρα καλῶν
S. El. 919
;κ. λαβεῖν, of a law,to be ratified, D.C. 38.17 , al.:—κῦροςand all derivs. are post- Hom. (Cf. Skt.śūas'valiant', OIr.caur'hero', Welshcawr'giant'.)