A.without authority, opp. κύριος, hence,
I. of laws, sentences, etc., invalid, unratified, obsolete, “ψήφισμα” And.1.8; “δίκη” Pl.Lg.954e; “συνθῆκαι” Lys.18.15; ἄκυρον ποιεῖν, καταστῆσαι set aside, Pl.Prt.356d, Is.1.21, etc.; νόμοις ἀ. χρωμένη not enforcing the laws, Th.3.37. Adv. “-ως” Simp. in Ph.168.10.
II. of persons, having no right or power, “ἄ. ποιεῖν τινά” X.HG5.3.24; “καθιστάναι” Lys. 9.19; τινός over a thing, Pl.Tht.169e; “ἄ. πάντων . . γενήσεσθε” D.19.2 : c. inf., Pl.Lg.929e.
2. of things, ἀκυροτέρα κρίσις less trust-worthy decision, Pl.Tht.178d; ἄ. ἀμφορεύς voting urn into which neutral votes were thrown, Sch.Ar.Eq.1150, Poll.8.123; τὰ ἀκυρότερα less important parts of nature, Arist. GA778a1; of bodily members, unimportant, “ἄ. μόριον” Gal.16.540, cf. 18(1).33 (Comp.); impotent, Arist.GA772b28.
III. of words and phrases, used in improper sense, Cic.Fam.16.17.1 (Comp.), Phlp. in Ph.717.12. Adv. “-ρως” Str.12.3.23, Phld.Rh.1.161 S., Hermog.Meth.3, cf. Dam.Pr.7, 306.