A.means for judging or trying, standard, freq. of the mental faculties and senses, “ἔχων αὐτῶν τὸ κ. ἐν αὑτῷ” Pl.Tht.178b, cf. R.582a, Plu.2.448b, etc.; “τὸ αἰσθητήριον καὶ κ. τῶν . . χυμῶν” Arist. Metaph.1068a3, cf. Epicur.Ep.1p.5U. (pl.), Sent.24, al.; περὶ κριτηρίου, title of works by Epicurus (D.L.10.27), Posidonius (Diocl. ap. D.L.7.54), and Ptolemy: generally, χρόνον εἶναι μέτρον καὶ κ. τάχους measure, test, Zeno Stoic.1.26, etc.
2. court of judgement, tribunal, Pl.Lg.767b; “καθίζειν κ.” Plb.9.33.12, cf. PHib.1.29 (a) (iii B. C.), 1 Ep.Cor.6.2, IG14.951.20, Paus.2.20.7, POxy.2134.6 (ii A. D.), etc.
b. decision of a tribunal, judgement, SIG826 K9 (Delph., ii B. C.).